An Engineer Need to Implement a Solution That Prevents Loops

An engineer need to implement a solution that prevents loops from occurring accidentally by connecting a switch to interface Ethernet1/1. The port is designated to be used for host connectivity. Which configuration should be implemented?

A) switch# configure terminal switch(config) # interface Ethernet1/1 switch(config-if) # spanning-tree bpduguard enable
B) switch(config-if) # spanning-tree guard loop
C) switch(config-if) # spanning-tree loopguard default
D) switch(config-if) # spanning-tree bpdufilter enable