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").

[Q]: Fact1: Ants communicate with chemicals called pheromones., Fact2: Ants use receptors on their antennae to follow recruitment pheromone trails., Question: What do ants use to communicate? (A) nerves (B) heat energy (C) sound (D) binary code (E) light energy (F) Antennae. (G) megaphones (H) hand signals
[A]: F

[Q]: Fact1: predicting weather requires studying weater, Fact2: Meteorologists try to predict the weather., Question: What do meteorologists study? (A) Meatballs (B) amount of heat (C) Meteors (D) The weather. (E) related organisms (F) Music (G) air masses (H) Seisometers
[A]: D

[Q]: Fact1: sugar causes food to taste sweet, Fact2: Too many sweets can also cause tooth decay and unhealthy gums., Question: What causes tooth decay and unhealthy gums? (A) meat (B) worms (C) salt (D) smoking (E) sugar (F) vegetables (G) mildew (H) Alcohol
[A]:
E