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: building housing developments usually requires replacing animal habitats, Fact2: Habitat destruction is the primary cause of extinction or threat of extinction for all animals., Question: Building housing developments may cause (A) eruptions (B) colder weather (C) disease (D) erosion (E) extinction (F) mutations (G) Destroy bridges (H) deforestation

Ex Output:
E

Ex Input:
Fact1: predicting weather requires studying weater, Fact2: Meteorologists try to predict the weather., Question: What do meteorologists study? (A) Meatballs (B) amount of heat (C) Meteors (D) The weather. (E) related organisms (F) Music (G) air masses (H) Seisometers

Ex Output:
D

Ex Input:
Fact1: Mutation creates new genetic variation in a gene pool., Fact2: Fertilization increases genetic variation., Question: The gene pool expands through fertilization and: (A) offspring (B) agriculture (C) mutation (D) babies (E) seeds (F) zygotes (G) relocation (H) competition

Ex Output:
C