A customer requests to have 90 SnapSure checkpoints for every file system. After an interview with the administrator, you learn that the company has to comply with an industry requirement of keeping data on disk for a quarter.

What approach solves the requirement with least disk overhead?

A.
Create three checkpoint schedules:
Snap a checkpoint every day, every even hour, keep 4.
Snap a checkpoint Mon-Sat, at 5pm, keep 6.
Snap a checkpoint on Sun, at 6pm, keep 80.

B.
Create four checkpoint schedules:
Snap a checkpoint every day, every hour between 8am and 4pm, keep 7.
Snap a checkpoint Mon-Sat, at 5pm, keep 6.
Snap a checkpoint on Sun, at 5pm, keep 3.
Snap a checkpoint every 1st of the month, at 6pm, keep 3.

C.
Create two checkpoint schedules:
Snap a checkpoint every day, every hour, keep 12.
Snap a checkpoint Mon, at 5pm, keep 12.

D.
Create one checkpointschedule.
Snap a checkpoint every day, at 5pm, keep 90.