Holger Incorporated, which produces and sells a single product, has provided the following

data:

Sales

2,000 units

Selling price

$60 per unit

Variable expense

$40 per unit

Fixed expense

$20,000

Consider each of the following questions independently.

If the dollar contribution margin per unit is increased by 10% and if total fixed expense is decreased by 20%, net operating income is expected to:

A) increase by $2,000

B) increase by $12,000

C) increase by $8,000

D) increase by $16,000