The correct answer is A. Ctrl + P.
The shortcut key for printing a document in Windows is Ctrl + P. This shortcut can be used in any program that supports printing, such as Microsoft Word, Excel, and PowerPoint. To use the shortcut, simply press the Ctrl and P keys at the same time.
The other options are incorrect. Shift + P is the shortcut key for opening the Print Preview window. Alt + P is the shortcut key for opening the Paragraph dialog box. Ctrl + Alt + P is not a valid shortcut key.
I hope this helps!