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").

Input: Consider Input: Fact1: soil is formed by rocks eroding, Fact2: Rivers erode the rocks they flow over., Question: What is formed by rivers? (A) fish (B) soil (C) rain (D) bamboo (E) spring (F) clouds (G) kayaks (H) NaCl

Output: B


Input: Consider Input: Fact1: Humans have collected and grown mushrooms for food for thousands of years., Fact2: Yeast and mushrooms are types of fungus., Question: What have humans collected and grown for thousands of years? (A) Organic compounds (B) types of coral (C) types of ferns (D) bioaerosols (E) Most plants (F) types of fungus (G) types of pine trees (H) peachleaf willow

Output: F


Input: Consider Input: Fact1: if a plant requires less water then that plant will survive in a drought, Fact2: Shrub beds and ground covers require less water and provide more variety to the landscape., Question: What needs less water and will survive in a drought? (A) tiny polyps (B) Roundworms (C) shrub beds (D) tall trees (E) heterotrophs (F) rainforests (G) mussels (H) dandilions


Output: C