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: And roller coasters work with gravity., Question: Roller coaster work the same as any object having mass being pulled how on a planet (A) body (B) trains (C) left (D) intermittently (E) down (F) feet (G) Lift (H) sideways
Output:
E