An Evidence File Was Archived onto Five CD-Rom Disks with the Third

An evidence file was archived onto five CD-Rom disks with the third file segment on disk number three.  Can the contents of the third file segment be verified by itself while still on the CD?

A) No.  EnCase cannot verify files on CDs.
B) Yes.  Any segment of an evidence file can be verified through re-computing and comparing the CRCs, even if it is on a CD.
C) No.  Archived files are compressed and cannot be verified until un-archived.
D) No.  All file segments must be put back together.