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").

Example Input: 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
Example Output: F

Example Input: Fact1: chemical weathering causes iron in rock to oxidize, Fact2: Oxides Oxides Oxides are elements combined with oxygen., Question: Chemical weathering causes iron in rock to combine with what? (A) uranium (B) oxygen (C) cartilage (D) nothing (E) an object (F) vacuum (G) energy (H) heat
Example Output: B

Example Input: Fact1: a glacier causes mechanical weathering, Fact2: Pysical weathering is the mechanical breakdown of rocks., Question: What do glaciers do to rocks? (A) form them (B) melt them (C) protect them (D) storing water (E) throw them (F) It expands (G) Water expanding (H) break them down
Example Output:
H