In this task, you are given a multiple-choice question and you have to pick the correct option. Answer with option indexes (i.e., "A", "B", "C", and "D").
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Question: The producer makes its own: (A) body (B) sustenance (C) air (D) grass

Answer: B


Question: Obstacles that might impede a dune are (A) God (B) emotions (C) cacti (D) cancers

Answer: C


Question: Which is a visible example of water vapor (A) aerial clouds (B) snow (C) cigarette clouds (D) ice

Answer:
A