You design a network with the following network addresses:
192.168.168.0
192.168.169.0
192.168.170.0
192.168.171.0
192.168.172.0
192.168.173.0
192.168.174.0
192.168.175.0
Which route address is the best summary of these network addresses?
A. 192.168.0.0/24
B. 192.168.171.128/3
C. 192.168.168.0/21
D. 192.168.175.0/3
E. 192.168.0.0/16
