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: soil is formed by rocks eroding, Fact2: Rivers erode the rocks they flow over., Question: What is formed by rivers? (A) fish (B) soil (C) rain (D) bamboo (E) spring (F) clouds (G) kayaks (H) NaCl
B

Fact1: a flashlight requires a source of electricity to produce light, Fact2: Flashlights can help children see better., Question: Children see better with a source of electricity to do what? (A) focusing a lens (B) staying warm (C) survival (D) reproduce (E) produce light (F) remove electricity (G) produce darkness (H) remove light
E

Fact1: if a tree falls then sunlight becomes available to the surrounding plants, Fact2: When a big tree falls, sunlight shines on smaller plants and they get a chance to grow., Question: What do plants do when a tree nearby falls? (A) dormant state (B) They attract birds (C) They die (D) They grow better (E) It remains dormant (F) It becomes dormant (G) They also fall (H) they bend
D