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 Input:
Fact1: Freshwater biomes have water that contains little or no salt., Fact2: Biomes are global ecosystems., Question: what is freshwater habitats that contain little or no salt? (A) Animal survival (B) allow growth (C) weathering (D) atmosphere (E) loose soil (F) ecosystems (G) salt and water. (H) oceans

Ex Output:
F


Ex Input:
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

Ex Output:
G


Ex Input:
Fact1: Humans have collected and grown mushrooms for food for thousands of years., Fact2: Porcini mushrooms are earthy, musky, sexy food., Question: what have humans collected and grown for thousands of years? (A) computers (B) h2o (C) orchids (D) stamps (E) seeds (F) trees (G) ferns (H) porcinis

Ex Output:

H