The selected financial statement information for a company includes the following items:

1. total assets of $300,000 at the end of the current year

2. total assets of $500,000 at the end of the prior year

3. net sales of $3,000,000 in the current year

4. net income of $1,200,000 in the current year

What is the return on assets for the current year?

A. 3.0

B. 4.0

C. 7.5

D. 10.0