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: the Himalayas were formed by rock folding, Fact2: Movements in the earth's crust have folded and cracked the older rocks., Question: the Himalayas were formed from older what (A) soils (B) plates (C) rivers (D) rock (E) eras (F) meadows (G) dirt (H) plains

Ex Output:
D

Ex Input:
Fact1: Infancy is the period of most rapid growth after birth., Fact2: Development means to get better, growth means to get bigger., Question: What is the period of most rapidly getting bigger after birth? (A) 86400 (B) infancy (C) adult (D) a hosta (E) pregnancy (F) adulthood (G) eight (H) angiosperm

Ex Output:
B

Ex Input:
Fact1: gases from burning coal and oil dissolving in water in the atmosphere causes acid rain, Fact2: Acid rain is very bad and can hurt the environment., Question: Gases from burning coal and oil dissolving in water in the atmosphere can hurt what? (A) agriculture (B) people (C) sun (D) the past (E) animals (F) environment (G) moon (H) climate

Ex Output:
F