Which keyboard shortcut is used to extend the selection down in a Microsoft Excel worksheet?

In Microsoft Excel, extending a selection involves using the Shift key in combination with arrow keys. This allows users to quickly select a range of cells.

• Shift + Down Arrow is the correct shortcut to extend the current selection downwards by one cell. Holding Shift while pressing an arrow key extends the selection in that direction.
• Ctrl + Shift + Right Arrow extends the selection to the last non-empty cell to the right.
• Alt + Down Arrow is often used to open drop-down lists or filter menus.
• Ctrl + Down Arrow moves the active cell to the last non-empty cell in the current column downwards, without extending the selection.