Answer:
Option D is correct. A pound sign is used to indicates that a cell is not wide enough to display its numbers.
Explanation:
A pound sign symbol indicates that a cell is not wide enough to display its number in Excel. However, it is noted that if you use or installed a US keyboard in your computer then hash symbol (#) is shown and the pound sign symbol is shown if you use or installed the UK keyboard layout in your computer.
Why other options are not correct.
this symbol is used for multiplication in formula or in a cell to multiply the numbers with each other.
A dollar sign is used in a cell to show the currency. If you want to show the cell value as a currency. Then, you can use the dollar sign.
Percentage sign in the cell shows that value in a cell is representing a percentage of some values.