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.
- $\csc 45 ^ { \circ }$

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