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: 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
[EX A]: F

[EX Q]: Fact1: Butter is a fat that is a solid at room temperature., Fact2: Some fats are more likely to cause heart disease., Question: What can butter lead to? (A) Heart disease (B) air pollution (C) reproduction (D) destruction (E) religion (F) trees (G) heating (H) Tooth pain
[EX A]: A

[EX Q]: Fact1: Mammals breathe with the help of a diaphragm., Fact2: Common dolphins are mammals., Question: What does a diaphragm help a dolphin do? (A) swimming (B) rest (C) stay warm (D) smell (E) see (F) breathe (G) eat (H) survive
[EX A]:
F