Correct Answer: A

Rationale: Including multiple headlines at the start of an article allows for the quick conveyance of the most important information about a significant event. In the case of the article about the assassination of Abraham Lincoln, the headlines serve as brief summaries of key details, such as the event itself, the perpetrator, the status of the President, and related incidents like the attempted assassination of Secretary Seward. These headlines help readers grasp the main points efficiently without having to read through the entire article. The purpose is to summarize the key details and attract readers' attention to engage them in the content. Choice B is incorrect because the purpose is not to sensationalize the story but to inform. Choice C is incorrect as the intention is not to incite panic but to provide essential information. Choice D is incorrect because the headlines serve a meaningful purpose and are not included just to fill empty space on the page.

Correct Answer: C

Rationale: The author implies that she believes the hero should be more nuanced and less unconditionally good in U.S.-made movies. This is evident from her claim that it is hard to find a movie that presents the hero as anything other than supremely morally worthy, suggesting a desire for more complexity and depth in the portrayal of the hero character. Choice A is incorrect because the author does not advocate for the hero always appearing morally worthy. Choice B is incorrect as the author does not suggest that the hero should never appear morally worthy. Choice D is incorrect as the author does not state that the hero is an uninteresting character, but rather emphasizes the need for a more nuanced portrayal.

Correct Answer: B

Rationale: Choice B introduces a specific claim that texting while driving is extremely dangerous by stating that 'there may be nothing more dangerous than texting while driving' and supports this claim with statistics on the number of deaths and injuries caused by texting while driving. It further emphasizes the impact by mentioning that the majority of texting drivers are teens. This approach of providing specific evidence helps to distinguish the claim from counterclaims and strengthens the argument. Choices A, C, and D do not introduce a specific claim supported by factual evidence and fail to distinguish it from potential counterclaims, making them less effective in presenting a strong argument.

Correct Answer: A

Rationale: The statement "Promoters of dietary supplements can make any claims that are supported by research" is not a detail from the passage. The passage mentions that manufacturers, not promoters, can make claims supported by research. The primary focus is on the regulations and manufacturing standards for dietary supplements. Choice B is a detail from the passage as it mentions the GMP requirements for large manufacturers going into effect in 2008. Choice C is incorrect as the passage states that FDA regulations for dietary supplements are not the same as those for prescription medications. Choice D is also supported by the passage, emphasizing that consumers should research supplement claims before making a purchase to ensure accuracy and safety.

Correct Answer: A

Rationale: The correct answer is A. The passage mentions that explorers like Lewis and Clark were sent to the newly acquired Louisiana Territory immediately after the Louisiana Purchase. This indicates that explorers were already on their way to the region following the purchase. Choice B is incorrect as there is no direct mention of the government wanting to increase its power right after the purchase. Choice C is incorrect as the passage does not state that government officials would specifically ensure explorers were dispatched to the region. Choice D is incorrect because there is no information provided in the passage about explorers expecting payment for their work.