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: a mutation in the sex cells of a parent can cause a new trait to appear in the parent 's offspring, Fact2: Animals that reproduce sexually produce sex cells, or gametes., Question: a mutation in the _ of a parent can cause a new trait to appear in the parent 's offspring (A) eggs (B) courtship (C) mitochondria (D) alleles (E) pollen (F) gametes (G) ATP (H) hormones
[EX A]: F

[EX Q]: Fact1: an aquatic animal requires great amounts of water to survive, Fact2: Beavers are primarily aquatic animals., Question: what requires great amounts of water to survive (A) sunlight (B) beavers (C) octopus (D) mussels (E) trout (F) carbon (G) oxygen (H) amphibians
[EX A]: B

[EX Q]: Fact1: Fission takes place when an animal divides into two parts., Fact2: Euglenoids are eukaryotes, and reproduce by fission., Question: Euglenoids reproduce by what? (A) dissection (B) production of energy (C) dividing into two parts (D) excretion (E) mechanical waves (F) insemination (G) converting mass to energy (H) metabolic reaction
[EX A]:
C