The correct answer is C. Formula bar.
The formula bar is located below the ribbon and allows you to enter values and formulas into cells. It also displays the formula that is currently entered into the active cell.
The title bar is located at the top of the Excel window and displays the name of the workbook and the current worksheet.
The menu bar is located below the title bar and contains the menus that you use to access commands.
The standard toolbar is located below the menu bar and contains buttons for common commands, such as Save, Cut, and Paste.
I hope this helps! Let me know if you have any other questions.