An organization is granted the block 164.76.0.0/16. The administrator wants to create 2048 subnets using 11 bits. The first and last addresses in subnet 2048 respectively are
a. 164.76.255.0/26 and 164.76.255.255/26
b. 164.76.255.1/16 and 164.76.255.255/16
c. 164.76.255.192/26 and 164.76.255.255/26
d. 164.76.255.192/16 and 164.76.255.255/16