Determine the Integral by Making an Appropriate Substitution $\int \tan ^ { 9 } ( 2 x ) \sec ^ { 2 } ( 2 x )$

Multiple Choice

Determine the integral by making an appropriate substitution.
- $\int \tan ^ { 9 } ( 2 x ) \sec ^ { 2 } ( 2 x )$ dx

A) $\frac { 1 } { 10 }$ $\tan ^ { 10 }$ x + C
B) $\frac { 1 } { 20 }$ $\tan ^ { 10 }$ x + C
C) 9 $\tan ^ { 8 }$ x + C
D) $\tan ^ { 10 }$ x + C
E) none of these