The correct answer is C. DOWN ARROW or CTRL+DOWN ARROW.
To move the selected control down in Access, you can use the DOWN ARROW key or the CTRL+DOWN ARROW keyboard shortcut.
The DOWN ARROW key will move the selected control down one row at a time. The CTRL+DOWN ARROW keyboard shortcut will move the selected control down one row at a time, but it will also select the next control in the same column.
The SHIFT+RIGHT ARROW key will move the selected control to the right one column at a time. The SHIFT+DOWN ARROW key will not move the selected control down.
The None of these option is incorrect because it does not include the correct answer.