Find the Reference Angle $\theta ^ { \prime }$ For the Given Angle

Multiple Choice

Find the reference angle $\theta ^ { \prime }$ for the given angle $\theta$ .
$$\theta = - 343 ^ { \circ }$$

A) $107 ^ { \circ }$
B) $73 ^ { \circ }$
C) $27 ^ { \circ }$
D) $17 ^ { \circ }$
E) $7 ^ { \circ }$