In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").

Input: Consider Input: Fact1: Mammals can also generate little bursts of heat by shivering., Fact2: Polar bears are mammals., Question: What can generate little bursts of heat by shivering? (A) alpacas (B) bacteria (C) animals (D) polar bears (E) phytoplankton (F) rabbit (G) viruses (H) humans

Output: D


Input: Consider Input: Fact1: bacteria can cause people to become ill, Fact2: People frequently die of illnesses ., Question: What can cause people to die? (A) viruses (B) Dehydration (C) stars (D) smallpox (E) bacteria (F) clouds (G) flooding (H) Saturn

Output: E


Input: Consider Input: Fact1: plant requires seed dispersal for reproduction, Fact2: Seeds are dispersed by animals., Question: What does plant reproduction require? (A) energy (B) Energy. (C) bloom time (D) insects (E) snow (F) animals (G) rivers (H) clouds


Output: F