Which of the following commands would be used to prevent a switchport from processing Bridge Protocol Data Units?

A.	switch(config)#bpdu filter enable
B.	switch(config)#no bpdu enable
C.	switch(config-if)#spanning-tree bpdufilter enable
D.	switch(config-if)#no spanning-tree bpdu filter enable
E.	switch(config-if)#spanning-tree bpdu guard