GMAT Sentence Correction (SC) | Re: Can sum1 plz help with this ques ?

Since 1981, when the farm depression began,the number of acres overseen by professional farm-management companies have grown from 48 million to nearly 59 million,an area that is about Colorado's size.
A)have grown from 48 million to nearly 59 million ,an area that is about Colorado's size
B) have grown from 48 million to nearly 59 million ,about the size of Colorado
C) has grown from 48 million to nearly 59 million ,an area about the size of Colorado's
D) has grown from 48 million up to nearly