Q: Fact 1: Breathing is when a gill converts from oxygen in water into oxygen in blood. Fact 2: Shark gills remove the oxygen from the water. Given the two facts above, what breathing use gills to convert oxygen in blood?

(a). sharks.
(b). octopus.
(c). hippos.
(d). a fish.
(e). Lobsters.
(f). water bugs.
(g). trout.
(h). alligators.
A:
(a).