Editor
The 7th term of $(3^{8}+6^{4}x)^\frac{11}{4}$ is
Difficulty: Easy
A: 
$-\frac{19217}{3}x^{6}$
B: 
$\frac{189}{2}6x^{4}$
C: 
$\frac{2227}{12}x^{3}$
D: 
$-\frac{19712}{3}x^{6}$