Definition: 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: a compass is used for determining direction, Fact2: Navigation is done by compass only., Question: What is navigation used for? (A) predicting weather (B) Communication (C) speed at which sound moves (D) Being over land (E) local weather conditions (F) determining direction (G) help other species benefit (H) Stopping a vehicle
Output:
F