Find the Exact Value Without Using a Calculator $$\sec \frac { 3 \pi } { 4 }$$

Multiple Choice

Find the exact value without using a calculator.
- $$\sec \frac { 3 \pi } { 4 }$$

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