Which of the above numbers is the value of expression equal to?

3.5x105 +4.0 x106 - 2.0 x104

A. 3.542 x 10^5

B. 7.3 x 10^5

C. 4.15 x 10^6

D. 4.33 x 10^6

E. 4.37 x 10^6