The correct option is D All of the above
Seahorses are tiny fishes that are named for the shape of their head, which looks like the head of a tiny horse. There are at least 25 species of seahorses.
Seahorses are truly unique, and not just because of their unusual equine shape. Unlike most other fish, they are monogamous and mate for life. Rarer still, they are among the only animal species on Earth in which the male bears the unborn young.
Found in shallow tropical and temperate waters throughout the world, these upright- swimming relatives of the pipefish can range in size from 0.6 inches (1.5 centimeters) to 14 inches (35 centimeters) long.
A female seahorse lays dozens, sometimes hundreds, of eggs in a pouch on the male seahorse‘s abdomen. Called a brood pouch, it resembles a kangaroo‘s pouch for carrying young. Seahorse young hatch after up to 45 days in the brood pouch. The baby seahorses, each about the size of a jelly bean, find other baby seahorses and float together in small groups, clinging to each other using their tails.
Unlike kangaroos, baby seahorses do not return to the pouch. They must find food and hide from predators as soon as they‘re born.