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: Mutations may change the structure of a chromosome or just change a single nucleotide., Fact2: SNPs involve polymorphisms at the single nucleotide level., Question: What is a potential outcome of genetic mutation? (A) HIV (B) albino (C) anemia (D) pizza eating turtles (E) genealogy (F) SNPs (G) biology (H) death

Ex Output:
F


Ex Input:
Fact1: Migrants typically travel long distances., Fact2: Migrant birds arrive., Question: What travels long distances? (A) humans (B) jets (C) rocks (D) birds (E) camels (F) cocoons (G) Light (H) eggs

Ex Output:
D


Ex Input:
Fact1: Loss of ozone has created an ozone hole over Antarctica., Fact2: An annual ozone hole over Antarctica has been observed since the 1980s., Question: What has been lost that created a hole over the south pole? (A) calcium (B) gas (C) ozone (D) smoke (E) water (F) oxygen (G) fluid (H) erosion

Ex Output:

C