Which spanning-tree feature satisfies this requirement?

For client server failover purposes, the application server team has indicated that they must not
have the standard 30 second delay before their switchport enters a forwarding state. For their
disaster recovery feature to operate successfully, they require the switchport to enter a forwarding
state immediately. Which spanning-tree feature satisfies this requirement?

A.
Rapid Spanning-Tree

B.
Spanning-Tree Timers