Convert the Degree Measure to Radians $630 ^ { \circ }$

Multiple Choice

Convert the degree measure to radians. Leave answer as a multiple of π.
- $630 ^ { \circ }$

A) $- \frac { 7 \pi } { 4 }$
B) $- \frac { 7 \pi } { 2 }$
C) $\frac { 7 \pi } { 2 }$
D) $7 \pi$