Correct Answer: D

Rationale: The correct answer is D because Hedy Lamarr's invention of a frequency-hopping system, along with George Antheil, laid the foundation for technologies like cellular phones, Bluetooth, and Wi-Fi. This significant contribution revolutionized communication technology. Choice A is incorrect because it focuses on the limitations of the era's technology rather than Lamarr's contributions. Choice B is incorrect as it briefly mentions her collaboration but does not directly relate it to technological advancements. Choice C is incorrect as it highlights her failed inventions, which are not indicative of her significant contributions to technology.

Correct Answer: A

Rationale: The correct conclusion that can be drawn from the passage is that plastic pollution poses a significant environmental threat due to its lasting nature and difficulty in recycling. The passage highlights the challenges of recycling plastic due to its low quality when recycled, leading to pollution and environmental hazards. It mentions the presence of a large island of plastic in the Pacific Ocean, showing the severe impact of plastic pollution on the environment. Therefore, choice A is the most accurate conclusion. Choice B is incorrect as the passage mentions that plastic has many advantages despite its recycling challenges. Choice C is incorrect as the passage indicates that recycling plastic is difficult due to its low quality when recycled. Choice D is incorrect as the passage clearly states that plastic consumption by marine life like fish and birds is a reality, showing the impact of plastic pollution on marine ecosystems.

Correct Answer: B

Rationale: The statement that rested people have better impulse control supports the claim that napping during the workday can lead to employees being happier, healthier, and more productive. Improved impulse control can result in better decision-making, including choosing nutritious food over junk food, which contributes to overall well-being and productivity. Choices A, C, and D do not directly address the relationship between napping and improved well-being or productivity, making them less relevant to supporting the claim.

Correct Answer: A

Rationale: News articles and textbooks would provide the most relevant historical data on economic trade during World War 1. During significant events like World War 1, news articles would have reported on the economic aspects, such as trade disruptions and policies. Textbooks that cover the period would also delve into the economic impacts of the war. Choices B, C, and D are incorrect because social media, photographs, atlases, works of art, almanacs, and music are less likely to contain specific information about economic trade during World War 1. Social media did not exist during that time, photographs, atlases, works of art, almanacs, and music are more focused on visual, geographical, artistic, or general historical aspects rather than detailed economic data.

Correct Answer: D

Rationale: The correct answer is D, as it showcases Hedy Lamarr's determination and hard work towards achieving her goals. Despite facing challenges, such as not having many spoken lines in her roles, she persevered by teaching herself in her spare time. Choice A talks about her success in starring in American films but does not directly relate to her working earnestly. Choice B mentions her collaboration with Howard Hughes' science engineering team, which indicates involvement but not necessarily hard work towards personal goals. Choice C describes her becoming bored due to the lack of spoken lines in her roles and does not highlight her dedication and effort to achieve her aspirations.