When MS-DOS formats a disk, it automatically creates the main directory on your disk, which is called the _____ directory. A. main B. root C. area D. border E. None of the above

The correct answer is: B. root

The root directory is the main directory on a disk. It is created automatically when the disk is formatted. All other directories on the disk are subdirectories of the root directory.

The other options are incorrect because:

• Option A, “main”, is too general. The root directory is not the only main directory on a disk. There can be multiple main directories, such as the system directory and the user directory.
• Option C, “area”, is not specific enough. The root directory is a specific type of area, namely a directory.
• Option D, “border”, is not related to directories.
• Option E, “None of the above”, is the correct answer if the question is not about the root directory.