Gift Gallery sold 2,000 Zooglars during 2022.

The following information is provided regarding the Zooglar product:

Sales......................................... ..... $ 60,000

Variable costs............................ ....... 24,000

Fixed costs................................. ....... 10,000

Net income............................... ..... $ 26,000

If Gift Gallery sells 50 more units, by how much will its operating income increase

a.

$900

b.

$390

c.

$540

d.

$18