O'Neill, Incorporated's segmented income statement for the most recent month is given below.

For each of the following questions, refer back to the above original data.If Store B sales increase by $20,000 with no change in fixed expenses, the overall company net operating income should:
a). Increase by $2,500
b). Increase by $5,000
c). Increase by $8,000
d). Increase by $12,000

Total Store B S300,000S100,000S200,000 120,000 80,000 55,000 $25,000 Company Store A Sales Variable expenses Contribution margin Traceable fixed expenses Segment margin Common fixed expenses Net operating income 192,000 108,000 76,000 32,000 27,000 $5,000 72,000 28,000 21,000 $7,000