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: Streams may start with runoff or water seeping out of a spring., Fact2: Most water comes from precipitation., Question: What do most streams start with? (A) swamp vegetation (B) heat produced (C) loose dirt (D) Decibels (E) Veins and arteries. (F) matter vibrating (G) visible energy (H) precipitation
[EX A]: H

[EX Q]: Fact1: natural disasters can cause animals to leave an environment, Fact2: Animal migration is mystery of nature., Question: Natural disasters can cause  (A) deforestation (B) kill them (C) Pollution (D) disease (E) deadly (F) erosion (G) migration (H) flooding
[EX A]: G

[EX Q]: Fact1: Adult sponges produce eggs and sperm., Fact2: Sexual reproduction involves sperm and an egg., Question: what reproduces sexually? (A) insects (B) h2o (C) Most plants (D) Plant reproduction (E) viruses (F) adult sponges (G) mold (H) spread flower seeds
[EX A]:
F