Divide 35b5 + 20ab3 + 20a2b2 by 5b2. What is the quotient? A. 7b3 - 4ab - 4a2 B. 7b3 + 4ab + 4a2 C. 7b7 + 4ab5 + 4a2b4 D. 35b3 + 20ab + 20a2