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: moss causes chemical weathering, Fact2: Mosses Mosses are flowerless plants that grow in clumps., Question: What can cause chemical weathering? (A) Calcium carbonate (B) our nearest star (C) global warming (D) sea squirts (E) swamp vegetation (F) single-celled organisms (G) flowerless plants (H) Earthworms
[A]: G

[Q]: Fact1: Insects may live in large colonies and have complex social behaviors., Fact2: Like other ants, the fire ant is a social insect., Question: What may live in large colonies? (A) animals (B) tigers (C) tardigrades (D) fire ants (E) bears (F) honeybees (G) orchids (H) graptolites
[A]: D

[Q]: Fact1: Protozoa can be classified on the basis of how they move., Fact2: Cryptosporidium parvum is the hardest protozoa to kill., Question: How can animals like cyptosporidium be classified? (A) prokaryotic cells (B) holding nutrients (C) Laboratory (D) how they move (E) eukaryotic cells (F) coelenterates (G) melanin content (H) angiosperm
[A]:
D