Write Each Expression in Factored Form as an Algebraic Expression $$\tan ^ { 4 } x - \sec ^ { 4 } x$$

Multiple Choice

Write each expression in factored form as an algebraic expression of a single trigonometric function.
- $$\tan ^ { 4 } x - \sec ^ { 4 } x$$

A) $\sec ^ { 2 } x$
B) $\sec ^ { 2 } x + \tan ^ { 2 } x$
C) $\tan ^ { 2 } - \sec ^ { 2 } x$
D) $- 2 \tan ^ { 2 } x - 1$