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: Playing is one way mammals and other animals learn how to behave., Fact2: Opossums are a type of mammal called marsupials., Question: what plays to learn how to behave? (A) opossums (B) humans (C) people (D) fish (E) exercise (F) ants (G) h2o (H) catabolism
[EX A]: A

[EX Q]: Fact1: Ants communicate with chemicals called pheromones., Fact2: Ants communicate with the colony in the form of what is called pheremon trails., Question: Ants communicate with the colony using what? (A) Electrical energy (B) Chemical energy (C) visible energy (D) Decibels (E) pheremon traits (F) heat energy (G) refraction of light (H) mechanical waves
[EX A]: E

[EX Q]: Fact1: Plants that shed their leaves seasonally each year are called deciduous plants., Fact2: Trees here are largely deciduous, shedding their leaves in the dry season., Question: Plants shed their leaves in what season each year? (A) spring season (B) wet season (C) firing season (D) Summer (E) When it's cold (F) colder weather (G) Winter (H) dry season
[EX A]:
H