Problem 3-25b - Vector difference

Determine the vector that must be added to the sum of \(A\) and \(B\) in the figure to give a net displacement of \(4.0\; km\; \text{W}\).

diagram indicating directions north and east as well as vectors A and B

Let us first get an approximate solution. Which vector \(C\) will best represent the answer?

Possible solutions for vector C