Write an Integral Giving the Area of the Surface Obtained $\frac{4}{x}$

Multiple Choice

Write an integral giving the area of the surface obtained by revolving the curve about the x-axis. (Do not evaluate the integral.) y = $\frac{4}{x}$ on [3, 6]

A) ( )
B) 8 $\int_{3}^{6} x^{3} \sqrt{x^{4}+16} d x$
C) 8 $\int_{3}^{6} \frac{\sqrt{x^{4}+16}}{x^{3}} d x$
D) ( $\int_{3}^{6} \frac{4}{x}\left(1+\left(-\frac{4}{x^{2}}\right) ^{2}\right) d x$ )