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: Fertilization occurs when a sperm and an egg fuse., Fact2: Pregnancy begins with a fertilized egg., Question: what begins when a sperm and an egg fuse? (A) Leptospirosis (B) cellular regeneration (C) h2o (D) seeds (E) death (F) pollen (G) pregnancy (H) competition
[EX A]: G

[EX Q]: Fact1: soil is formed by weathering, Fact2: Over time, the slow processes of weathering and erosion can turn large rocks into sand., Question: What is formed by erosion processing large rocks? (A) cracks (B) crust (C) Newton (D) roots (E) pan (F) soil (G) potash (H) biome
[EX A]: F

[EX Q]: Fact1: thick fur can be used for keeping warm, Fact2: Snow leopards coats have thick, dense fur., Question: what can be used for keeping warm? (A) four limbs (B) an electric stove (C) tusks (D) snow leopard coats (E) animal claws (F) beaver tails (G) evaporation (H) electricity
[EX A]:
D