What statement is true of the configuration for this network?

Refer to the exhibit. What statement is true of the configuration for this network?

A.
The configuration that is shown provides inadequate outside address space for translation of the number of inside addresses that are supported.

B.
Because of the addressing on interface FastEthernet0/1, the Serial0/0 interface address will not support the NAT configuration as shown.

C.
The number 1 referred to in the ip nat inside souce command recerences access-list number 1.

D.
ExternalRouter must be configured with static routers to network 172.16.2.0/24