yes its true ,answer will be 4 of for 101th packet.
as 5 bit sequence number so tatal sequence number =2^5=32 (0-31)
0-31 (32)
0-31(32)
0-31(32)
0-31(32)
so after sending 96 packets ,sequence number of next sending packets will be 0,1,2.3.4 so 101th packet sequence number will be 4