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.