Detailed 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").
Problem:Fact1: natural magnetism is used for pointing north by a compass, Fact2: Teens learn how to navigate terrain and use a compass., Question: What points north for navigation? (A) mountains (B) the Arctic (C) science (D) latitude (E) magnetism (F) Antarctica (G) astrology (H) right
Solution:
E