A displacement of 9 m north of point A, and another of 6 m west of point A can be added to produce a resultant displacement of:
A. 3 m at 34 deg W of N
B. 10 m at 34 deg.N of W
C. 10.8 m at 56 deg. N of W
D. 12.5 m N of W
E. 15 m at 44 deg. N of W
Answer: C