What is the result of this action?

Refer to the exhibit:

An administrator deletes the Service 1.5 snapshot.

What is the result of this action?
A . Reversion to Service 1 snapshot, and Service 2 snapshot will remain.
B . Reversion to Service 1 snapshot, and Service 2 snapshot will be deleted.
C . Reversion to Service 2 snapshot, and Service 1 snapshot will be deleted.
D . Deletion of all snapshots.

Answer: A