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").

[Q]: Fact1: safety goggles are used for protecting the eyes during experiments, Fact2: Firm plastic eyeglasses or goggles are better., Question: What protects the eyes during experiments? (A) magnesium (B) Chemicals (C) Vibrissae (D) Type O (E) Rolex (F) plastic (G) water (H) wind
[A]: F


[Q]: Fact1: a light bulb is used for seeing in the dark, Fact2: Light is emitted by a light bulb., Question: What is required for seeing? (A) dark (B) sun (C) light (D) wind (E) retina (F) eyes (G) photons (H) copper
[A]: C


[Q]: Fact1: a windmill converts wind energy into electricity primarily by using mechanical energy, Fact2: Windmills tap into the energy of the wind using sails or vanes., Question: What do windmills use to convert energy? (A) Heat (B) fibers (C) copper (D) cycles (E) SO2 (F) Vanes (G) calcite (H) Lift
[A]:
F