Fact 1: Most amphibians breathe with gills as larvae and with lungs as adults. Fact 2: All frogs are amphibians. Given the two facts above, what breathes with gills as larvae and with lungs as adults.?

Choose your answer from: (1). Salmon. (2). Frogs. (3). parasites (4). Whales. (5). Mice. (6). a fish (7). air (8). tortoises
The answer is:
(2).