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: 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

Ex Output:
F


Ex Input:
Fact1: telephones are used for communication by two people by transmitting sound, Fact2: Cell phones are, bottom line, radios with a connection to a telephone company., Question: What are used for two people for communication with sound? (A) cell phones (B) messengers (C) energy (D) megaphones (E) A Greek letter (F) flashlights (G) gramophones (H) electricity

Ex Output:
A


Ex Input:
Fact1: planting trees has a positive impact on an ecosystem, Fact2: Thus one important job the squirrel does in the ecosystem is to plant trees., Question: What kind of effect does a squirrel have on the ecosystem? (A) Negative (B) Positive (C) adding heat (D) growth (E) food (F) Destructive (G) Powerful (H) support

Ex Output:

B