Which of these sentences uses possessive nouns correctly?

Question

A. The two brothers’ invention was a children’s game; each player’s marker was an animal.
B. The two brother’s invention was a childrens’ game; each player’s marker was an animal.
C. The two brother’s invention was a children’s game; each players’ marker was an animal.
D. The two brothers’ invention was a childrens’ game; each players’ marker was an animal.

Answer 1

I'll be glad to check your answer.

Answer 2

I think the answer is c.

Answer 3

Nope.

Answer 4

Hint: if there are two brothers, is that singular or plural? And each player is one person, isn't s/he?

Answer 5

soooo....A?

Answer 6

Yes, A.