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").
--------
Question: In a zoo, a polar bear exhibit will contain (A) salt (B) cacti (C) strong fans (D) sand

Answer: C


Question: Which of the following is correct? (A) The earth's strong gravitational pull causes a waxing gibbous to form (B) astrology causes a waxing gibbous to form (C) star maps cause a waxing gibbous to form (D) government satellites cause a waxing gibbous to form

Answer: A


Question: An example of a chemical change is (A) milk to yogurt (B) mixing marbles (C) my chemical romance (D) shredding paper

Answer:
A