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: seeing requires light, Fact2: Vision is our ability to see., Question: What is required for vision? (A) light (B) goggles (C) food (D) smell (E) hormones (F) Protein (G) color (H) hue

Ex Output:
A


Ex Input:
Fact1: Carbon cycles quickly between organisms and the atmosphere., Fact2: Water, carbon dioxide, and nitrogen are all needed by living things., Question: What is needed by living things? (A) hate (B) sunlight (C) Chemical energy (D) pain (E) love (F) hydration (G) The atmosphere (H) Energy.

Ex Output:
G


Ex Input:
Fact1: Fertilization occurs when a sperm and an egg fuse., Fact2: Pregnancy begins with a fertilized egg., Question: what begins when a sperm and an egg fuse? (A) Leptospirosis (B) cellular regeneration (C) h2o (D) seeds (E) death (F) pollen (G) pregnancy (H) competition

Ex Output:

G