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

Multiple Choice

Determine the integral by making an appropriate substitution.
- $\int \tan ^ { 2 } x \sec ^ { 2 } x d x$   Use the substitution u = tan x.

A) $\frac { \tan ^ { 2 } x } { 2 }$ + C
B) sec x tan x + C
C) $\frac { \sec ^ { 2 } x } { 2 }$ + C
D) $\frac { \tan ^ { 3 } x } { 3 }$ + C
E) none of these