Which of the following statements is contrary to the statement No football players are kind-hearted human beings?

The contrary is All football players are kind-hearted human beings.

The given proposition is the E form No football players are kind-hearted human beings.

The contrary of an E proposition is the corresponding A proposition.

Contraries cannot both be true, though both may be false, unlike contradictories.

So the universal affirmative All football players are kind-hearted human beings is the contrary of the given denial.