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").

[EX Q]: Fact1: shelter is used for protection by animals against weather, Fact2: Caves or rock overhangs provide shelter., Question: What do animals find protection from when using rock overhangs? (A) sun's heat (B) insects (C) weather (D) erosion (E) rivers (F) bats (G) wind (H) the sun
[EX A]: C

[EX Q]: Fact1: Plants are the major producers in terrestrial biomes., Fact2: Grasses are very distinctive plants., Question: What is a producer in terrestrial biomes? (A) food (B) Oak (C) mammals (D) flowers (E) earth (F) grass (G) Trees (H) mushrooms
[EX A]: F

[EX Q]: Fact1: a glacier causes mechanical weathering, Fact2: Mechanical weathering produces detritus., Question: A glacier produces what? (A) streams. (B) detritus (C) loose soil (D) lava (E) erosion (F) body water (G) magma (H) food
[EX A]:
B