Refer to the exhibit.
Username Engineer privilege 9 password 0 configure Username Monitor privilege 8 password 0 watcher Username HelpDesk privilege 6 password help Privilege exec level 6 show running Privilege exec level 7 show start-up Privilege exec level 9 configure terminal Privilege exec level 10 interface
Which line in this configuration prevents the HelpDesk user from modifying the interface configuration?

A.	Privilege exec level 9 configure terminal
B.	Privilege exec level 10 interface
C.	Username HelpDesk privilege 6 password help
D.	Privilege exec level 7 show start-up