A total of 24 students are in Alfred's class. The number of girls in the class is 3 more than twice the number of boys. Which system of equations can be used to find g, the number of girls who are in Alfred's class, and b, the number of boys?

A) g + b = 24
g = 2b + 3

B) g + b = 24
b = 2g + 3

C) g + b = 24
g = 2b - 3

D) g + b = 24
b = 3 - 2g

E) None of the above