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").

[EX Q]: The circulatory system brings oxygen to the body from where? (A) The chest (B) The brain (C) The feet (D) The stomach
[EX A]: A

[EX Q]: migration is when what move to different locations in an annual cycle? (A) animal figurines (B) sedentary animals (C) habitual creatures (D) currents
[EX A]: C

[EX Q]: if a person smashes an object, and it cracks, is that good or bad? (A) it is always a positive thing to the object (B) the object fails to be impacted (C) all of these (D) the item suffers a negative impact
[EX A]:
D