Which of the following Class C networks contains host 192.168.14.2 in CIDR notation?

192.168.11.0/21-cidr notation uses the format xxx.xxx.xxx.xxx/n, where n is the number of 1 bits in the network mask. this means the network 192.168.11.0/21 actually contains all addresses in the range 192.168.8.0 - 192.168.15.255. conversely, the network 192.168.10.0/22 only contains addresses in the range 192.168.8.0 - 192.168.11.255 the network 192.168.12.0/23 only contains addresses in the range 192.168.12.0 - 192.168.13.255, and the network 192.168.13.0/24 only contains addresses in the range 192.168.13.0 - 192.168.13.255.