If u(x) = x5 – x4 + x2 and v(x) = –x2, which expression is equivalent to (U/V) (x)?

If u(x) = x5 – x4 + x2 and v(x) = –x2, which expression is equivalent to (U/V) (x)?

a) x3 – x2
b) –x3 + x2
c) –x3 + x2 – 1
d) x3 – x2 + 1