Which groups of animals can be hosts for cat fleas?

Cat fleas, scientifically known as Ctenocephalides felis, are known to have a variety of hosts. The correct answer indicates that cats, dogs, opossums, and humans can all serve as hosts.

Cats are the primary host for cat fleas, but these fleas are also commonly found on dogs, which can facilitate their spread. Opossums can be hosts as well, as they come into contact with the fleas in environments where both animals live. Humans are occasionally bitten by cat fleas, especially in homes with flea infestations, although they are not a typical host for the lifecycle of the flea.

The other options limit the range of possible hosts in a way that does not reflect the biology of cat fleas. For example, mentioning only cats and dogs overlooks the role of other animals like opossums and humans. This broad spectrum of potential hosts highlights the adaptability of cat fleas in various environments and their ability to infest multiple species, which is crucial in understanding their control and management in pest control practices.