Question

Which single CIDR block correctly summarizes the four networks 192.168.0.0/24, 192.168.1.0/24, 192.168.2.0/24, and 192.168.3.0/24?

A 192.168.0.0/21
B 192.168.0.0/23
C 192.168.0.0/16
D 192.168.0.0/22
E 192.168.0.0/25
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