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.
- $\sin \alpha$ , if $\cot \alpha = 3$ and $\cos \alpha < 0$

A) $- \frac { 3 \sqrt { 10 } } { 10 }$
B) $\frac { \sqrt { 10 } } { 10 }$
C) $- \sqrt { 10 }$
D) $- \frac { \sqrt { 10 } } { 10 }$