It is C because both Thoroughbreds and Clydesdale horses are in the equine family, but they have different traits. Thoroughbred are the sleek horses you see at horse races. Clydesdales are thinker stocker horses like the ones you see on the Budweiser commercials. I hope I helped you!
~ Princy
Specialized glandular epithelial tissue and a vast blood supply
Gathering information and data, since it refers to the key word: <em>timeline</em>.