which weekly backup schedule results in the fastest recovery of a file system that changes daily?

In NetWorker, which weekly backup schedule results in the fastest recovery of a file system that changes daily?

A.
Full 1 2 3 4 5 6

B.
Full incr incr incr incr incr incr incr

C.
Full 8 8 8 8 8 8

D.
Full 4 7 4 7 4 7