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 Q]: Fact1: smoking tobacco decreases stamina, Fact2: Decreased stamina or stunted growth are two important signs that a murmur is significant., Question: Smoking tobacco can cause what? (A) heart health (B) lymphoma (C) murmur (D) good lungs (E) heart strength (F) cancer (G) disease (H) symptoms
[EX A]: C

[EX Q]: Fact1: Plants are the major producers in terrestrial biomes., Fact2: Grasses are very distinctive plants., Question: What is a producer in terrestrial biomes? (A) food (B) Oak (C) mammals (D) flowers (E) earth (F) grass (G) Trees (H) mushrooms
[EX A]: F

[EX Q]: Fact1: Ethanol is produced by alcoholic fermentation of the glucose in corn or other plants., Fact2: Ethanol is another transportation fuel., Question: What is produced by alcoholic fermentation of glucose in corn? (A) peachleaf willow (B) A compound that donates proton (C) A cleaning fluid (D) A source of electricity (E) A transportation fuel (F) Organic compounds (G) A yeast (H) Chemical energy
[EX A]:
E