Final answer:
In Excel, to view a worksheet without gridlines, uncheck the Gridlines option in the Page Layout tab. This hides the gridlines on the worksheet.
Step-by-step explanation:
To view a worksheet without gridlines showing on the screen in Microsoft Excel, you would uncheck the Gridlines option located under Page Layout. Specifically, you would go to the ribbon at the top of Excel, click on the Page Layout tab, and then uncheck the checkbox for Gridlines in the 'Sheet Options' group. This action will hide the gridlines on the currently active worksheet.
To view a worksheet without gridlines showing on the screen in Excel, you would need to uncheck the option in the View menu. The correct option is a) View > Gridlines. By unchecking this option, the gridlines will no longer be visible on the screen, allowing you to see the worksheet content without them.