A server technician is applying a security patch to an active-passive failover SQL cluster. However, the cluster must continue to service clients during the process with limited outages. Given this scenario, which of the following should the technician do to adhere to these maintenance requirements? 

Answer options:

A. Failover back to the original active node once the patching is complete
B. Keep services failed over to passive node once patching is complete
C. Move services to the active node and repeat for the passive node
D. Patch the passive node, failover, and patch the other node

D