Simplify the Expression $\frac { \cos \left( \frac { \pi } { 2 } - x \right) \tan x } { \sin ^ { 2 } x }$

Multiple Choice

Simplify the expression.
- $\frac { \cos \left( \frac { \pi } { 2 } - x \right) \tan x } { \sin ^ { 2 } x }$

A) $\csc x$
B) $\sec x$
C) $\sin ^ { 2 } x$
D) $\tan x$