Evaluate the following limit. Use l'Hôpital's Rule when it is convenient and applicable.
$\lim_{x \to 0^{-}} \frac{(4 \tan \theta - 4 \sec \theta)}{\frac{x}{2}}$
How should the given limit be evaluated? Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. Use l'Hôpital's Rule exactly once to rewrite the limit as $\lim_{x \to 0^{-}} \frac{\boxed{}}{\frac{x}{2}}$
B. Use l'Hôpital's Rule more than once to rewrite the limit in its final form as $\lim_{x \to 0^{-}} \frac{\boxed{}}{\frac{x}{2}}$
C. Multiply the expression by a unit fraction to obtain $\lim_{x \to 0^{-}} \frac{\boxed{}}{\frac{x}{2}}$
D. Use direct substitution
