Help 7 ​

$325  is between  $300 and $400

Go down to this row and  look  under the "0" column  for no exemptions   →   $7

Now go over to the  "2"  column for 2 exemptions  and note that the amount is  →  $2

So....his weekly withholdings will be  [ $7  - $2 ]   =  $5  more → "C"