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: cell division often causes growth, Fact2: Mitosis is cell division., Question: What often causes growth? (A) exercise (B) hormones (C) Atrophy (D) collagen (E) Earthworms (F) Apoptosis (G) Necrosis (H) Mitosis

Ex Output:
H

Ex Input:
Fact1: Plants that shed their leaves seasonally each year are called deciduous plants., Fact2: Vines are perennial, deciduous climbing plants., Question: What sheds their leaves seasonally each year? (A) camels (B) oak (C) Spruce (D) fens (E) Trees (F) burrs (G) apples (H) vines

Ex Output:
H

Ex Input:
Fact1: Mammals have a layer of fat under the skin to help insulate the body., Fact2: If it has hair it is a mammal., Question: What does a hairy organism have under its skin to help insulate the body? (A) fat (B) hair (C) food (D) cell (E) nerves (F) coat (G) fur (H) marrow

Ex Output:
A