Verified answer

x(x^2 -9)/(x+3) ÷ (x^2 -3x)/(x)

x(x-3)(x+3)/(x+3) ÷ x(x -3)/(x)... x+3 cancels in first, x in 2nd fraction

x(x-3) ÷ (x -3)... x-3 cancels leaving

x

so C

x((x+3)(x-3))/(x+3) /x(x-3)/x

x/(x-3)/(x-3)

x

so answer c