Use the Appropriate Reciprocal Identity to Find the Function Value $\tan \theta$

Multiple Choice

Use the appropriate reciprocal identity to find the function value. Rationalize the denominator if necessary.
- $\tan \theta$ , if $\cot \theta = \frac { \sqrt { 7 } } { 3 }$

A) $\frac { 3 \sqrt { 7 } } { 7 }$
B) $\frac { \sqrt { 7 } } { 7 }$
C) $\frac { \sqrt { 3 } } { 7 }$
D) $\frac { 7 \sqrt { 7 } } { 3 }$