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: Most amphibians breathe with gills as larvae and with lungs as adults., Fact2: Amphibians begin their lives in the water., Question: animals that begin their lives in what breathe with gills then move elsewhere breathe with lungs (A) breathe (B) water (C) oxygen (D) a fish (E) underground (F) salt flats (G) air (H) jungle
B