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: a refrigerator is used for keeping food fresh for a long period of time, Fact2: Cold temperatures keep food fresh and inhibit the growth of most bacteria., Question: A refrigerator is used for inhibiting the growth of what on food? (A) some invertebrates (B) viruses (C) molds (D) spores (E) Echinoids (F) most bacteria (G) Nematoda (H) cones

Ex Output:
F


Ex Input:
Fact1: Gymnosperms are vascular plants that produce seeds in cones., Fact2: Gymnosperms are the plants that are known as evergreens., Question: What are vascular plants that produce seeds in cones? (A) evergreens (B) it needs them (C) Leptospirosis (D) epidermal (E) Conifers (F) white (G) Newton (H) more abundant

Ex Output:
A


Ex Input:
Fact1: Any antigen that causes an allergy is called an allergen., Fact2: Antibodies are produced to fight antigens., Question: What are produced to fight allergens?  (A) oxidizers (B) bacteria (C) flagella (D) antibodies (E) red blood cells (F) enzymes (G) hormones (H) orange

Ex Output:

D