As a network administrator, you have configured a Catalyst 6500 Series Switch with redundant supervisor engine in a CIS network. What is the result of issuing the redundancy force-switchover command on that switch?（）

• A、Automatic switchover from active to standby on primary supervisor failure
• B、Reset of the primary supervisor.
• C、Manual switchover from active to standby supervisor
• D、Manual switchover from standby to active supervisor