which these steps occur?

You used the IMMEDIATE option to shutdown your database instance. Consider the steps
that will be performed later when you open the database: Which option has the correct order
in which these steps occur?

A.
1,2,3,5,6,4; step 7 is not required

B.
7,1,5,2,3,6 step 4 is not required

C.
1,5,7,2,3,6; step 4 is not required

D.
7,1,5,2,3,6,4