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: gravity causes objects that have mass to be pulled down on a planet, Fact2: Rocks have mass., Question: What does gravity cause to be pulled down on a planet? (A) matter (B) heat (C) earth (D) solutes (E) oceans (F) Rocks (G) people (H) Lift

A: F
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Q: Fact1: webbed feet are used for moving faster through water by aquatic animals, Fact2: Animals move around, seeking their prey., Question: What do webbed feet help aquatic animals do? (A) rapid expansion (B) root growth (C) Catch prey (D) support (E) Regrows it (F) squeeze (G) Relieve pain (H) improve

A: C
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Q: Fact1: Muscle contraction occurs when muscle fibers get shorter., Fact2: Contraction of the muscle straightens the leg., Question: What happens to your leg when muscle fibers shorten? (A) they bend (B) It decreases (C) It straightens (D) permineralization (E) It expands (F) Damages them (G) Localized damage (H) Dehydration

A:
C
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