Fact 1: Breathing is when a gill converts from oxygen in water into oxygen in blood. Fact 2: Gill slits form gills in fish. Given the two facts above, what converts oxygen in water into oxygen in blood?

Options are: A). sharks; B). germs; C). Enzymes; D). starfish; E). rivers; F). Jellyfish; G). streams; H). a fish;
The answer is:
H).