Q: 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").
Fact1: a mirror is used for reflecting light, Fact2: Light enters the camera through the lens and is reflected upward by the mirror to the ground glass., Question: What redirects light in a camera? (A) cactuses (B) microscope (C) photons (D) electricity (E) The shutter (F) A mirror (G) A photo (H) The film
A:
F