Refer to the spreadsheet below:

What formula should be used to determine the Flow Into Node value in cell E$6($to be copied to E$7$:E$19)$ in the spreadsheet above?

$A6**D6$

D$6*E6$

$A6**E6$

$)>(0,D{6}^{**}E6,(A)6^{**}D6$

None of the above