Final answer:
A baby ferret is called a kit. This contrasts with marsupials, such as kangaroos, that give birth to immature young called joeys who continue their development in a pouch.
Step-by-step explanation:
The term used to describe a baby ferret is kit. In the context of mammals, different species have distinct names for their young. While marsupials like kangaroos and koalas have joeys, placental mammals such as ferrets have their own specific terms for offspring. A ferret, which is a domesticated form of the European polecat and belongs to the placental mammals, will give birth to a live young called a kit. This is in contrast to marsupials, whose young continue to develop in a pouch after an immature birth. As such, the correct answer to the question 'What's a baby ferret called? (a) Cub, (b) Pup, (c) Chick, (d) Kit' is d) Kit.