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: an electron microscope is used for seeing very small objects by making them appear bigger, Fact2: Electron microscopes allow scientists to magnify objects hundreds of thousands of times., Question: Electron microscopes are used for seeing very small things and doing what? (A) making them small (B) observe it (C) duplicate itself (D) making them tiny (E) making them invisible (F) rays or beams (G) magnifying them (H) major threat to health
Output:
G