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: cooking food requires adding heat energy, Fact2: Heat is essentially the source of energy., Question: Doing what to food requires adding the source of energy? (A) burning (B) burying (C) degrading (D) hydration (E) boiling (F) Light (G) sharing (H) cooking

Ex Output:
H

Ex Input:
Fact1: Some mollusks are nearly microscopic., Fact2: An abalone is a shellfish or mollusk., Question: What are nearly microscopic? (A) peachleaf willow (B) some humans (C) Most plants (D) some cats (E) some dogs (F) barnacles (G) gastropod shells (H) some abalone

Ex Output:
H