Which component shows the selected cell at the top of the Excel screen?

The Name Box is the component in Excel that displays the address of the currently selected cell. It is located to the left of the Formula Bar at the top of the Excel window. When you click on any cell within the worksheet, the Name Box will automatically update to show the cell's reference (for example, A1, B2, etc.). This feature is particularly helpful for users to keep track of their selections when navigating complex spreadsheets or when working with data spread across multiple sheets.

The Formula Bar, while important for entering and editing data or formulas, does not indicate the selected cell's reference directly; instead, it displays the content of the cell. Action Buttons are typically associated with macros or specific functions and do not show the cell reference. The Worksheet is where the data is organized and displayed but does not specifically show the cell reference at the top of the screen. Therefore, the Name Box is the correct answer as it provides a clear and immediate reference to the active cell.