Referring to the exhibit, what happens when you issue the exit command at the [edit protocols ospf area 0.0.0.51 stub hierarchy level?

Referring to the exhibit, what happens when you issue the exit command at the [edit protocols ospf area 0.0.0.51 stub hierarchy level?

A. You move one level up to the [edit protocols ospf area 0.0.0.51] hierarchy level. B. You exit the configuration mode. C. You move to the [edit] hierarchy level. D. You move to the most recent higher level of the [edit protocols ospf] hierarchy.