In the diagram, PW is parallel to QX,S and T lie on QX, and U and V are the points of intersection of PW with SR and TR, respectively. If \angle{SUV}=120^\circ and \angle{VTX}=112^\circ, what is the measure of \angle{URV}?
Answer Choices
A. 52^\circ
B. 56^\circ
C. 60^\circ
D. 64^\circ
E. 68^\circ