Instructions: 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").
Input: Fact1: gravity causes objects that have mass to be pulled down on a planet, Fact2: Asteroids Asteroids are variously-shaped masses of rock, metal, and ice., Question: Asteriods are often pulled into the planet Jupiter by what force? (A) heat (B) kalenchoes (C) energy (D) power (E) strong nuclear force (F) Gravity (G) Air Force (H) centrifugal force
Output:
F