instruction:
You are given a science question (easy-level) and four answer options (associated with "A", "B", "C", "D"). Your task is to find the correct answer based on scientific facts, knowledge, and reasoning. Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D'. There is only one correct answer for each question.
question:
At what time on a sunny day will the shadow of the school's flagpole be the shortest?
(A) sunrise (B) noon (C) mid-afternoon (D) sunset
answer:
B

question:
Which of the following compounds is most likely to be part of living organisms?
(A) C?H??O? (B) BF? (C) MoCl? (D) CsI
answer:
A

question:
During the Siberian summer, reindeer graze on young roots, fungi, grass, and other vegetation. In the cold winter months, they migrate south and rely on available, but less nutritious food, such as lichen. Increased snowfall during the entire winter in southern areas would result in reindeer having to
(A) return to their summer feeding area. (B) hibernate until the snows have stopped. (C) hunt for organisms such as small rodents. (D) move to other areas to compete for resources.
answer:
D