Use the Fundamental Identities to Find the Value of the Trigonometric

Multiple Choice

Use the fundamental identities to find the value of the trigonometric function.
-Find $\cot \theta$ , given that $\tan \theta = \frac { \sqrt { 7 } } { 3 }$ and $\theta$ is in quadrant III.

A) $\frac { 5 } { 4 }$
B) $- \frac { 3 } { 2 }$
C) $- \frac { \sqrt { 7 } } { 9 }$
D) $\frac { 3 \sqrt { 7 } } { 7 }$