What is the best summary of this passage?

Correct Answer: A

Rationale: The best summary of the passage is that humans can use coloration and markings on snakes to determine whether they're venomous. The passage discusses how snake markings serve the purpose of warning predators and helping humans identify venomous snakes by their bright coloration. Choice B is incorrect because the passage focuses on how coloration helps snakes evade predators rather than hide from them. Choice C is incorrect as it only mentions two specific snakes with similar markings, which is a minor detail compared to the main point of identifying venomous snakes. Choice D is incorrect because it only partially reflects the passage, focusing solely on the relationship between markings and venom in snakes, missing the crucial aspect of human ability to discern venomous snakes based on their coloration.

Correct Answer: B

Rationale: The correct answer is B: Water immediately. After planting potatoes, the first step should always be to water them immediately. This is crucial to settle the soil around the newly planted potatoes, ensuring good contact between the roots and the soil. Watering helps kickstart the growth process and provides the necessary moisture for the newly planted potatoes to establish themselves successfully. Choices A, C, and D are incorrect because mounding soil, mixing fertilizer/compost, and spacing potatoes should be done before or during planting, not immediately after.

Correct Answer: A

Rationale: After the soil has been loosened with a tiller or trowel, the next step should be to mix fertilizer or compost into the loosened soil. This action is crucial as it provides essential nutrients for plant growth, improves soil fertility, and promotes healthy plant development. Digging a trench, cutting potatoes, or mounding soil around the base of the plant are not tasks typically performed immediately after loosening the soil. Therefore, option A is the correct choice as it aligns with the standard practice of enhancing soil quality before planting.

Correct Answer: C

Rationale: The most likely description of the relationship between the author and Alan is friendly. The author's message to Alan is filled with warmth, concern, and offers of help, indicating a positive and supportive tone. The use of phrases like 'I just wanted to drop you a quick note' and 'Let me know if you want any special treats' reflect a friendly and amicable relationship. Choices A, B, and D are not as suitable as competitive, formal, or caring relationships do not align as strongly with the friendly and supportive nature of the interaction described in the text.

Correct Answer: D

Rationale: The author's purpose is to attract customers to Carl's Car Depot. The text from the extract clearly emphasizes the one-day-only summer sale event at Carl's Car Depot, highlighting the wide range of cars available at discounted prices with special financing options. The author aims to draw in potential customers by presenting compelling offers and creating a sense of urgency. Choices A, B, and C are incorrect because the primary focus is on attracting customers to Carl's Car Depot by showcasing the available cars and the limited-time sale, not solely informing customers about the cars, urging other dealerships to lower prices, or generally providing affordable cars.