A manufacturer has supplied the following data:

units produced and sold	380,000
Sales revenue	$ 2,736,000
Variable manufacturing expense	$ 1,349,000
Fixed manufacturing expense	$ 336,000
Variable selling and administrative expense	$ 399,000
Fixed selling and administrative expense	$ 372,000
Net operating income	$ 280,000

The company's degree of operating leverage is closest to:

Multiple Choice

9.77

3.53

1.36

2.47