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: when metal conducts heat , that metal expands, Fact2: Gold is a precious metal., Question: what expands when it conducts heat? (A) sodium (B) glass (C) an ion (D) liquid (E) gold (F) lipids (G) copper (H) coal
Output:
E