The balances in two separate bank accounts that grow each month at different rates are represented by the functions f(x) and g(x). In what month do the funds in the f(x) bank account exceed those in the g(x) bank account?

Month (x) f(x) = 2x g(x) = 4x + 12
1 2 16
2 4 20

A. Month 3
B. Month 4
C. Month 5
D. Month 6