Sanchez & Ryan, Inc, Sells a Single Product

Sanchez & Ryan, Inc, sells a single product. This year, 20,000 units were sold resulting in $130,000 of sales revenue, $60,000 of variable costs, and $17,500 of fixed costs.
-If sales increase by $19,500 in a year,profits will increase by:

A) $10,500.
B) $17,500.
C) $19,500.
D) $35,000.