$$\int_0^{\infty} \frac{6}{e^{3x} + 6e^{2x} + 11e^x + 6} dx =$$

A

$$\log_e\left(\frac{32}{27}\right)$$

B

$$\log_e\left(\frac{512}{81}\right)$$

C

$$\log_e\left(\frac{256}{81}\right)$$

D

$$\log_e\left(\frac{302}{27}\right)$$