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").
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Question: Fact1: cross-pollination increases genetic diversity, Fact2: Evolution requires genetic diversity., Question: What does evolution require? (A) Time and energy (B) Plant reproduction (C) cross-pollination (D) Reproduction (E) gene flow (F) coded genes (G) circulatory systems (H) animals with backbones

Answer: C

Question: Fact1: a mutation in the sex cells of a parent can cause a new trait to appear in the parent 's offspring, Fact2: Animals that reproduce sexually produce sex cells, or gametes., Question: a mutation in the _ of a parent can cause a new trait to appear in the parent 's offspring (A) eggs (B) courtship (C) mitochondria (D) alleles (E) pollen (F) gametes (G) ATP (H) hormones

Answer: F

Question: Fact1: Muscles can only contract., Fact2: Smooth muscles are involuntary muscles., Question: Something that can be described as what can only contract? (A) Smooth (B) the skin (C) Rough (D) strong (E) Sweet (F) Loud (G) complex (H) alveoli

Answer:
A