Correct option is C
In command-line interfaces, such as Windows Command Prompt, switching drives is done by typing the drive letter followed by a colon.
To switch from the C: drive to the D: drive, you would enter D:.
This command changes the current working directory to the root directory of the D: drive.
The other options (D;, D,, D&) are not valid commands for switching drives in the command-line interface.
Correctly switching drives is essential for navigating the file system and managing files and directories.