To answer this question, the user needs to have some familiarity with debugging in a programming environment.

The Debug Viewer pane is a window that displays information about the current state of a program being debugged. It typically includes tabs that allow the user to view and manipulate various types of data.

Now, let's go through each option and explain why it is right or wrong:

A. Watch, Variables, Debug: This option is incorrect. While "Watch" and "Variables" are often tabs included in a Debug Viewer pane, "Debug" is not a common tab and does not provide a clear function.

B. Watch, Data, Command: This option is incorrect. While "Watch" is a common tab included in a Debug Viewer pane, "Data" is not a common tab and does not provide a clear function. "Command" may be a tab used to enter debugging commands, but it is not a common tab in a Debug Viewer pane.

C. Watch, Variables, Command: This option is correct. "Watch" and "Variables" are common tabs included in a Debug Viewer pane, and "Command" may be a tab used to enter debugging commands. This option provides a clear and accurate list of tabs that may be included in a Debug Viewer pane.

D. View, Variables, Command: This option is incorrect. While "Variables" and "Command" are common tabs included in a Debug Viewer pane, "View" is not a common tab and does not provide a clear function.

The Answer is: C