instruction:
In this subtask, you will answer a simple science question. Please indicate the correct answer. If you're not sure about the answer, choose the last option "I don't know". Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D', 'E'. The "A"-"D" responses correspond to the answer options mentioned in the input. There is a 5th option "E" which should be used for questions for which you're not sure about the answer (e.g., when the questions do not provide enough information to answer).
question:
Question: Which of these would help to prevent infections from occurring in small cuts and scrapes?  (A) apply a cold ice pack (B) raise the injured area (C) apply pressure to stop bleeding (D) wash the area with warm, soapy wate?
answer:
D.


question:
Question: A pencil falls off of a desk. What moves the pencil toward the floor?  (A) mass (B) friction (C) gravity (D) spee?
answer:
C.


question:
Question: What characteristic helps a rabbit survive in a winter environment?  (A) size (B) strength (C) long ears (D) camouflag?
answer:

D.