_________ is the shortcut key to open a ‘New Blank’ document in MS-Word.

The correct answer is (b).

(a) Ctrl + B is the shortcut key to bold text in MS-Word.
(c) Ctrl + D is the shortcut key to change the font color in MS-Word.
(d) Ctrl + M is the shortcut key to insert a page break in MS-Word.

To open a new blank document in MS-Word, you can use the shortcut key Ctrl+N. This will create a new, blank document in the current window. You can also use the File menu to open a new document. To do this, click on the File menu and then select New. This will open the New Document dialog box, where you can select the type of document you want to create.