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
****
Q: Fact1: Most protists have motility., Fact2: Protists are single-celled microscopic organisms like amoebae., Question: _ have motility (A) amoebae (B) plants (C) properties (D) minerals (E) fungi (F) movement (G) hydration (H) complex

A: A
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Q: Fact1: matter vibrating can cause sound, Fact2: Words are only gross sounds heard through the ear., Question: What can be heard through the ear? (A) matter vibrating (B) encoded information (C) mean thoughts (D) absence of noise (E) ear drums (F) in the frog family (G) electromagnetic energy (H) the body's largest organ

A:
A
****