After travelling 35 km East; then 12 km North; then 20 km West; then 4 km South, in which direction is the traveller from the starting point?

Step 1: Place the start at O(0,0); positive x means East and positive y means North. | Step 2: Combine East and West moves: the net horizontal coordinate is x = 15 km. | Step 3: Combine North and South moves: the net vertical coordinate is y = 8 km. | Step 4: Thus the final point is (15,8); its x-sign points East and its y-sign points North. | Step 5: Combining those two directions places the point in the North-East quadrant. | Step 6: Therefore the traveller is North-East of the starting point; distance is unnecessary because only direction is asked. | Final Answer: Option C — North-East.