Steve had $3000 in his bank account exactly one year before today. He also managed to save $300 per month last year. For the first six months of the last year, his bank gave him an introductory annual rate of 18% compounded monthly. For the next six months, he got the regular annual rate of 12% compounded monthly. How much money does Steve have in his account now?

Please show how to get the answer using the finance formula in excel.

A) $7,400.38

B) $7,392.43

C) $7,311.59

D) $7,395.02