Problem 3-9 - Vector sum - Part 2

Find the magnitude and direction of the sum of the vectors $A + B + C$ using the component technique. Assume two significant digits.
$A = 20\; km$ north, $B = 30\; km$ east, $C = 50\; km\; 55 ^\circ$ west of north.

The three vectors $\text{A, B, C}$ must now be placed in the chosen coordinate system. Which drawing is correct?

(A)

(B)

(C)