Why Is Backing Up Data to a Different Partition on the Same

Multiple Choice

Why is backing up data to a different partition on the same hard drive not a good idea?

A) It performs at a slower rate.
B) Other users that have rights to save files can retrieve the backup, install to a different computer or drive, and potentially see other's data.
C) If the drive fails, both the data and the backup are potentially unusable.
D) The backup takes longer.