To save a presentation you A. click save on the windows start button B. press Ctrl + F5 C. select File, Save from the menu D. click the saver button on the formatting toolbar

The correct answer is: C. select File, Save from the menu.

To save a presentation in PowerPoint, you can follow these steps:

1. Click the File tab.
2. Click Save.
3. In the Save As dialog box, select the location where you want to save the presentation.
4. In the File name box, type a name for the presentation.
5. Click Save.

Option A is incorrect because the Windows Start button is used to open programs and access system settings.
Option B is incorrect because pressing Ctrl + F5 refreshes the current page in a web browser.
Option D is incorrect because the Save button on the Formatting toolbar is used to apply formatting to text.