Complete the Sentence So the Result Is an Identity $\tan \theta = \frac { 7 } { 24 } , \quad \sin \theta < 0 \quad$

Multiple Choice

Complete the sentence so the result is an identity. Let x be any real number.
- $\tan \theta = \frac { 7 } { 24 } , \quad \sin \theta < 0 \quad$ Find $\cos ( 2 \theta )$

A) $\frac { 527 } { 625 }$
B) $\frac { 336 } { 625 }$
C) $- \frac { 527 } { 625 }$
D) $- \frac { 336 } { 625 }$