$4.$ In the spreadsheet shown below, we computed profit earned by selling houses by entering the formula $=$F$8-$E$8$ in cell G$8$ and copying it down to G$9$:G$11.$ We used the word open to denote a house that is not yet sold. Unfortunately, when a house has not yet been sold our spreadsheet shows the #VALUE error, because you cannot subtract the buy price from the word open. We would like to "error trap" Column G so that when a house has been sold the correct profit has been computed and if the house has not yet been sold a $\_$ will be entered in Column G$.$ How many of the following formulas could be entered in cell G$8$ and copied down to G$9$:G$11$ to achieve this goal? $$ I. IFERROR$($F$8-$E$8,"\_")$ II$.$ ISERROR$($F$8-$E$8,"\_")$ III. IF$($COUNT$($G$8)>0,$F$8-$E$8,"\_")$ IV$.$ IFERROR$($F$8-$E$8,\_)$ V$.$ IFERROR$($E$8-$F$8,"\_")$ Just I Just I and II Just III Just I and III Just IV Just I and IV Just I and V

it is the bottom $2$ but stuck