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").

Example Input: Fact1: if soil is permeable then water easily flows through that soil, Fact2: If a soil has high permeability, water flows through the soil more freely and may cause chemicals to leach., Question: What may cause chemicals to leach in soil? (A) soil is permeable (B) Pesticides (C) soil is hard (D) soil is dense (E) soil is eroded (F) Organic compounds (G) fossil fuels (H) harmful substances
Example Output: A

Example Input: Fact1: Most pituitary hormones control other endocrine glands., Fact2: An abnormal endocrine gland is often blamed for producing obesity., Question: pituitary hormones can be blamed for what? (A) a lot of human deaths (B) Plant growth is reduced (C) harmful substances (D) Dehydration (E) matter vibrating (F) producing obesity (G) major threat to health (H) Leptospirosis
Example Output: F

Example Input: Fact1: Electron transport is the final stage of aerobic respiration., Fact2: Aerobic respiration requires Oxygen., Question: What involves oxygen? (A) an engine (B) Burning fuel and air (C) space (D) carbon (E) Movement of an air mass (F) nitrogen (G) electron transport (H) igniting fuel and oxidiser
Example Output:
G