Rewrite x^5+5r^3-9r+1 in the form q(x)+r(x)/b(x). What is q(x)?

A.
x7 + 11x5 + 21x3 + x2 − 54x + 6

B.
x5 + 5x3 − 9x + 1

C.
x5 + 5x3 − 9

D.
x3 − x