Which statement describes the behavior of source NAT with address shifting？（）

A.Source NAT with address shifting translates both the source IP address and the source port of a packet.

B.Source NAT with address shifting defines a one-to-one mapping from an original source IP address to a translated source IP address.

C.Source NAT with address shifting can translate multiple source IP addresses to the same translated IP address.

D.Source NAT with address shifting allows inbound connections to be initiated to the static source pool IP addresses.