Refer to This Figure to Answer the Question $\mathrm { m } ( \angle \mathrm { IJN } )$

Multiple Choice

Refer to this figure to answer the question. Line DH is parallel to line IM. Line BO is perpendicular to line DH.
- $\mathrm { m } ( \angle \mathrm { IJN } )$ is $49 ^ { \circ } .$ What is the measure of $\angle \mathrm { JEF }$ ?

A) Can't determine
B) $49 ^ { \circ }$
C) $131 ^ { \circ }$
D) $41 ^ { \circ }$