Why When sizing the /var partition on a UFS file system, you have estimated the /var/sadm area tohave 20 GB?

When sizing the /var partition on a UFS file system, you have estimated the /var/sadm area to
have 20 GB. Why?

A.
It is enough space to hold several complete crash dumps.

B.
It is rough space to hold package and patch information.

C.
It is enough space to hold logs and spools

D.
It is identical to the space allocated for the root slice, which is 20 GB on this particular system.