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").

Fact1: Mutualism is a symbiotic relationship in which both species benefit., Fact2: Dogs and humans are symbiotic species., Question: what exists between dogs and humans? (A) mutualism (B) gravity (C) communication (D) antigens (E) several genes (F) space between (G) electrons (H) german shepherd
A

Fact1: Playing is one way mammals and other animals learn how to behave., Fact2: Sea lions are tactile mammals., Question: What do sea lions learn how to behave from? (A) exercise (B) Energy. (C) fish (D) Movement (E) Energy (F) playing (G) children (H) whales
F

Fact1: a laser is used for producing light, Fact2: Furthermore, such laser light is polarized., Question: What are lasers? (A) energy (B) inactive (C) Firecrackers (D) polarized (E) heated (F) electricity (G) magnetized (H) irregular

D