A Boat Race Runs Along a Triangular Course Marked by Buoys

Multiple Choice

A boat race runs along a triangular course marked by buoys $A , B$ , and $C$ . The race begins with the boats headed west for 3900 meters. The other two sides of the course lie to the north of the first side, and their lengths are 1900 meters and 2500 meters, respectively. Find the bearing for the last leg of the race. Round your answer to two decimals.

A) $- \inf ^ { \circ }$
B) $113.74 ^ { \circ }$
C) $180.01 ^ { \circ }$
D) $156.26 ^ { \circ }$
E) $90.01 ^ { \circ }$