Which spanning-tree feature is configured on this interface?

Refer to the exhibit.

Which spanning-tree feature is configured on this interface?
A . The command spanning-tree portfast trunk in the interface configuration mode was entered
B . The command spanning-tree VLAN 10, 20, 30, 40 root primary in the interface configuration mode for faster convergence
C . The command spanning-tree mst1 VLAN 10, 20, 30, 40 in the global configuration mode was entered
D . The command spanning-tree portfast in the interface configuration mode was entered
E . The command shut then a no shutdown in the interface configuration mode was entered

View Answer

Answer: D