which of the following is the BEST candidate for migration?

In an HSM archive application, which of the following is the BEST candidate for migration?

A.
A 1 MB file that is 360 days old.

B.
A file stored on a server that will expire in 10 days.

C.
A 250 MB file that has not been referenced for 90 days.

D.
A 1 MB file that is 120 days old.