What is 120.571 in expanded form?

A. 1·100+2·10+5·1+7·110+1·1100

B. 1·100+2·10+10+5·110+7·1100+1·11000

C. 1·100+2·10+5·110+7·1100+1·11000

D. 1·1000+2·100+5·110+7·1100+1·11000