Evaluate Without Using a Calculator by Using Ratios in a Reference

Multiple Choice

Evaluate without using a calculator by using ratios in a reference triangle.
- $\tan \frac { - 7 \pi } { 4 }$

A) $\frac { \sqrt { 3 } } { 3 }$
B) $- 1$
C) $\sqrt { 3 }$
D) 1