There are six children playing football namely A, B, C, D, E and F.
A and E are brothers. F is the sister of E. C is the only son of A's uncle.
B and D are the daughters of the brother of C's father
How many male players are there ?
As given, A and E are brothers.
Hence both are males. F is sister of E and hence female. C is the son and hence male.
B and D are daughters and hence female.
Thus, there are three males.
So, the answer is (b).