Your company has a main officeand a branch office.
The branch officehas an Active Directory sitethat containsa read-only domain controller (RODC).
A user from the branch office reports that his account is locked out.
From a writable domain controller in the main office, you discover that the user’s account is not locked
out.
You need to ensure that the user can log on to the domain.
What should you do?

A.
Modify the Password Replication Policy.

B.
Reset the password of the user account.

C.
Run the Knowledge Consistency Checker (KCC) on the RODC.

D.
Restore network communication between the branch office and the main office.

Explanation:
not sure if:
Run the Knowledge Consistency Checker (KCC) on the RODC.
or
Restore network communication between the branch office and the main office.