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: knowledge of the stars can be used to navigate, Fact2: Explorers have used the North Star for navigational purposes for centuries., Question: What have explorers traditionally used to orient themselves? (A) clocks (B) sponges (C) hairs (D) waves (E) vehicle (F) osculum (G) harpoons (H) stars
Solution:
H