Which is the result of enabling IP Source Guard on an untrusted switch port that does not have DHCP snooping enabled？（）

• A、DHCP requests will be switched in the software， which may result in lengthy response times.
• B、The switch will run out of ACL hardware resources.
• C、All DHCP requests will pass through the switch untested.
• D、The DHCP server reply will be dropped and the client will not be able to obtain an IP address.