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").

Ex 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

Ex Output:
D

Ex Input:
Fact1: eyes are used for seeing by animals by sensing light, Fact2: Goats are four legged animals., Question: what uses eyes for seeing by sensing light? (A) pigeons (B) goats (C) potatoes (D) tigers (E) plants (F) h2o (G) humans (H) bears

Ex Output:
B

Ex Input:
Fact1: Phytoplankton are bacteria and algae that use sunlight to make food., Fact2: Most copepods feed on phytoplankton., Question: Most _ feed on bacteria and algae that use sunlight to make food. (A) Energy (B) Lobsters (C) Most plants (D) Seaweed (E) Starfish (F) plant life (G) Copepods (H) energy usage

Ex Output:
G