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: Sperm are deposited in the vagina during sexual intercourse., Fact2: Male gametes are sperm., Question: What are deposited in the vagina during sexual intercourse? (A) several genes (B) prokaryotic cells (C) cilia (D) female gametes (E) testicles (F) male gametes (G) irritants (H) Vibrissae

Ex Output:
F


Ex Input:
Fact1: Feathers help birds fly and provide insulation., Fact2: Some birds are flightless birds., Question: Why do the flightless have feathers? (A) layers of fat (B) Sublimation (C) it needs them (D) warm-blooded (E) Air conditioning (F) Radiation (G) Insulation (H) protect them

Ex Output:
G


Ex Input:
Fact1: Skin color is another polygenic trait., Fact2: Polygenic traits are controled by two or more genes., Question: What is controlled by two more more genes? (A) lizards (B) keratin (C) Flowers (D) flagella (E) enzymes (F) skin color (G) wild canines (H) insects

Ex Output:

F