Answer is (3)
The Subnetmask of a network has 1 in place of the network address.
255.255.255.11100000 is the mask ==> 3 bits are borrowed from the host part.
202.15.19.127 = 202.15.19.011 11111 ==> subnetwork 011 and all host bits are one ==> broadcast address
202.15.19.63 = 202.15.19.001 11111 ==> subnetwork 001 and all host bits are one ==> broadcast address