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").

[Q]: Fact1: astronauts require preserved food for extended flights, Fact2: Most of the Shuttle foods are preserved by dehydration, which saves weight and storage space., Question: astronauts require what food for extended flights? (A) Echinoderm. (B) layers of fat (C) dehydrated (D) fresh (E) hand picked (F) nutrients (G) frozen (H) hydration
[A]: C

[Q]: Fact1: Testosterone stimulates the reproductive organs to develop into male organs., Fact2: Male mammals have a tube-like organ called the 'penis'., Question: what does testosterone stimulate reproductive tissues to develop? (A) penis (B) PDAs (C) A drug. (D) offspring (E) ovaries (F) Man (G) CO 2 (H) vagina
[A]: A

[Q]: Fact1: Evolution occurs by a process called natural selection., Fact2: Adaptation is the result of natural selection., Question: evolution occurs by a process that results in what? (A) animals (B) adaptation (C) unnatural selection (D) Plants growth (E) evolution stopping (F) supernatural spirits (G) rapid expansion (H) competition
[A]:
B