Mad itch is mostly a disease of

Answer: Option C

Mad itch is mostly a disease of Swine.
Aujeszky's disease, or mad itch, is a viral disease mainly of cattle and swine but also affects sheep, goats, dogs, cats, raccoons, opossums, skunks and rodents.
It is not considered to be a disease of humans. Infected swine lose their appetites and may have convulsive fits.