Refer to the exhibit.

What is the purpose of the Repair button in the Cisco Unified Contact Center Express 5.0 Installation Wizard?

A.
repair the Cisco Unified Communications Manager cluster associated with this Cisco CRS system

B.
remove a version of Cisco CRS that the user had attempted but failed to remove previously

C.
recover a Cisco CRS system

D.
reinstall the same version of Cisco CRS on top of the currently installed version

Explanation: