Part of the proposed increase in state education spending is

Part of the proposed increase in state education spending is due to higher enrollment, since the number of students in public schools have grown steadily since the mid-1980’s and, at nearly 47 million, are at a record high.

( A ) enrollment, since the number of students in public schools have grown steadily since the mid-1980’s and, at nearly 47 million, are at

the number . . . has

( B ) enrollment, with a number of students in public schools growing steadily since the mid-1980’s and, at nearly 47 million, reaching

correct

( C ) enrollment, since students in public schools have grown steadily in number since the mid-1980’s and, at nearly 47 million, have reached

students haven't grown, well maybe, but distorts meaning.

( D ) enrollment, the number of student in public schools has grown steadily since the mid-1980’s and, at nearly 47 million, has reached

number of studentS

( E ) enrollment, students in public schools have grown steadily in number, since the mid-1980’s and, at nearly 47 million, are at

students haven't grown, well maybe, but distorts meaning.

I like B