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").

Input: Consider Input: If you had a hammer, you would find ____ nails made of ____ (A) wood; wood (B) iron; wood (C) wood; iron (D) iron; iron

Output: D


Input: Consider Input: What contains nutrients for plants? (A) dirt cheap (B) wind (C) ground minerals (D) soiled clothes

Output: C


Input: Consider Input: What do white blood cells allow to stay in the body? (A) viruses (B) oxygen (C) parasites (D) bacteria


Output: B