Final answer:
The 701st unit sold will contribute B. $1.40 to operating profits before income taxes.
Step-by-step explanation:
To determine the contribution to operating profits before income taxes for the 701st unit sold, we need to calculate the total costs for 701 units.
The fixed costs remain the same at $595, but the variable costs need to be recalculated for the additional unit.
The variable cost per unit is $980/700 units, so the additional unit would contribute $1.40 to operating profits before income taxes.