What is the correct interpretation?

In your two-instance RAC database, you find that FAST_START_MTTR_TARGET is set to
300 on both the nodes. The ESTD_CLUSTER_AVAILABLE_TIME column in the
V$INSTANCE_RECOVERY view shows the value 100. What is the correct interpretation?

A.
In the event of an instance failure, the failed instance will become available In 300
seconds.

B.
In the event of an instance failure, the database will become partially available in 200
seconds

C.
In the event of an instance failure, the failed instance will become fully available In 300
seconds.

D.
In the event of an instance failure, the database will become partially available In 100
seconds.

E.
In the event of an instance failure, the database will become fully available in 100
seconds.