Complete the Sentence So the Result Is an Identity $\sec x$

Complete the sentence so the result is an identity. Let x be any real number.
-Write $\sec x$ in terms of $\sin x$ .

A) $\pm \sqrt { 1 - \sin ^ { 2 } x }$
B) $\frac { \pm \sqrt { 1 - \sin ^ { 2 } x } } { 1 - \sin ^ { 2 } x }$
C) $\frac { \pm \sqrt { 1 - \sin ^ { 2 } x } } { \sin x }$
D) $\frac { \pm \sin x \sqrt { 1 - \sin ^ { 2 } x } } { 1 - \sin ^ { 2 } x }$

Correct Answer:

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