Divide the polynomial 4x^(3)-5x+21 by the binomial 2x-3. Check your answer by multiplying the quotient by the divisor. Which of the following is the correct quotient?

A) 2x^2 + 3x + 7
B) 2x^2 - 3x + 7
C) 2x^2 + 3x - 7
D) 2x^2 - 3x - 7