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: global warming is when worldwide temperature increases, Fact2: Mass extinction occurs in the ice age and global warming periods., Question: When worldwide temperature increases, mass what occurs? (A) extinction (B) deforestation (C) carbon (D) ice age (E) living (F) movement (G) It decreases (H) Pollution

Ex Output:
A


Ex Input:
Fact1: Mutations that lead to cancer usually occur in genes that control the cell cycle., Fact2: Cancer is an example of a mutation in cells., Question: What usually occur in genes that control the cell cycle? (A) Leptospirosis (B) competition (C) A Greek letter (D) a mutation in cells (E) Plant reproduction (F) biological diversity (G) resistance (H) resistance activities

Ex Output:
D


Ex Input:
Fact1: when a river floods , that river deposits soil in flood plains, Fact2: Major river is the Colorado river., Question: what deposits soil in flood plains when it floods? (A) the Colorado (B) the Pacific Ocean (C) water evaporation (D) bullfrogs (E) peachleaf willow (F) a hydraulic system (G) mussels (H) hydrogen

Ex Output:

A