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: Lipids may consist of fatty acids alone, or they may contain other molecules as well., Fact2: Lipids Lipids are also composed of carbon, oxygen and hydrogen., Question: What can fatty acids be combined with, in addition to carbon and oxygen? (A) Sodium (B) Energy. (C) glucose (D) Carbon Dioxide (E) Fuel cells (F) Uranium (G) Hydrogen (H) Energy
Output:
G