Which of the following statements is a proper example of what Aristotle termed a syllogism ?

A. All dogs have four legs, all creatures do not have four legs, hence all creatures with four legs are dogs.
B. All men breathe air, all dogs breathe air, hence all men are dogs.
C. All mammals are warm-blooded, all dogs are mammals, hence all dogs are warm-blooded.
D. All dogs have hair, all people have hair, hence anything with hair is a dog or a person.