The Figure Shows Four Vectors

The figure shows four vectors,
,
,
,and
,having magnitudes 12.0 m,10.0 m,8.0 m,and 4.0 m,respectively.The sum of these four vectors is

A) 16.4 m at an angle 77.8° with respect to +x-axis.
B) 16.4 m at an angle 12.3° with respect to +x-axis.
C) 19.5 m at an angle 77.8° with respect to +x-axis.
D) 19.5 m at an angle 12.3° with respect to +x-axis.
E) 8.20 m at an angle 77.8° with respect to +x-axis.