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: Mutualism is a symbiotic relationship in which both species benefit., Fact2: Dogs and humans are symbiotic species., Question: what exists between dogs and humans? (A) mutualism (B) gravity (C) communication (D) antigens (E) several genes (F) space between (G) electrons (H) german shepherd

Ex Output:
A


Ex Input:
Fact1: if an organism becomes too hot then that organism may die, Fact2: Hot sun can bleach flowers., Question: What can kill flowers? (A) Petals (B) Too much sun (C) cancer (D) Pollination (E) burning (F) dry conditions (G) Pesticides (H) Quality soil

Ex Output:
B


Ex Input:
Fact1: temperature changing can cause phase changes, Fact2: Global warming is the change of the Earth's temperature., Question: What is an example of a phase change? (A) flow of electrons (B) Deoxyribonucleicacid (C) chemical reaction (D) dormant state (E) Global warming (F) It remains dormant (G) bullfrogs (H) swamp vegetation

Ex Output:

E