Find the Acute Angle, in Degrees, Between the Lines $30 ^ { \circ }$

Multiple Choice

Find the acute angle, in degrees, between the lines.
-3x - y = 16 and 2x + y = -13

A) $30 ^ { \circ }$
B) $75 ^ { \circ }$
C) $45 ^ { \circ }$
D) $60 ^ { \circ }$