The following is last month's contribution format income statement(Do not round intermediate computations): Sales (20,000 units) $1,800,000.0 Less: variable expenses $1,200,000.0 Contribution margin $600,000.0 Less: fixed expenses $400,000 Operating income $200,000 What is the company's break-even in sales dollars?

a.

$1,800,000

b.

$1,200,000

c.

$1,600,000

d.

0