Some parameters on the WEEKLY_SEL schedule associated to nodes SERVER1 and SERVER2 in the WINDOWS domain need to be changed. Backup of the nodes must start at 03:00 a.m. instead of 01:00 a.m. and run on Sundays instead of Saturdays. Which command must be run first to successfully run the schedules with the new parameters?

A.
define association WINDOWS WEEKLY_SEL SERVER1, SERVER2

B.
update schedule WINDOWS WEEKLY_SELstarttime=03:00 expiration=never

C.
define schedule WINDOWS WEEKLY_SELstarttime=03:00 period=1 perunits=weeks dayofweek=sunday

D.
update schedule WINDOWS WEEKLY_SELstarttime=03:00 period=1 perunits=weeks dayofweek=sunday