In how many ways can 15 teams be formed, each consisting of a man and a woman, from 15 men and 15 women.
This looks like the same problem as finding the number of bijective functions from a set $A$ to $B$, both containing 15 elements each.
So the answer should be $15!$ which is not correct.
Edit: This is not a legitimate question though, could somebody try thinking about what constraints need to be added, so that the answer is close to the options. Yes, I mean 'correct the question'; it uses very rough language and is probably not what the options imply.
Edit: Let's try breaking the problem. What would be the number of ways to form 3 teams, each consisting of a man and a woman?