Find the Exact Value of the Indicated Trigonometric Function of θ

Multiple Choice

Find the exact value of the indicated trigonometric function of θ.
- $\tan \theta = - \frac { 8 } { 9 } , \quad \theta$ in quadrant II $\quad$ Find $\cos \theta$

A) $- \frac { 3 \sqrt { 13 } } { 13 }$
B) $- \frac { \sqrt { 13 } } { 3 }$
C) $\frac { 3 \sqrt { 13 } } { 13 }$
D) $\frac { \sqrt { 13 } } { 2 }$