How many extended partitions can exist on one drive?

The correct answer is: D. 1

An extended partition is a logical partition that can contain other logical partitions. A primary partition can be either a logical partition or an extended partition. A hard disk can have up to four primary partitions or three primary partitions and one extended partition.

The following are the possible answers to the question:

• A. 16 - This is incorrect because a hard disk can have up to four primary partitions or three primary partitions and one extended partition.
• B. 4 - This is incorrect because a hard disk can have up to four primary partitions or three primary partitions and one extended partition.
• C. 2 - This is incorrect because a hard disk can have up to four primary partitions or three primary partitions and one extended partition.
• D. 1 - This is the correct answer because a hard disk can have up to four primary partitions or three primary partitions and one extended partition.
• E. None of the above - This is incorrect because one of the options is the correct answer.