Explanation
Step 1: Understand the standard directions
In standard mapping, North is upwards, South is downwards, East is to the right, and West is to the left.
Step 2: Trace the path step-by-step
Let the initial coordinates of the starting point be (0,0).
Walks 30m North: Moving North increases the vertical (y-axis) position.
New Position=(0,0+30)=(0,30)
Walks 30m East: Moving East increases the horizontal (x-axis) position.
New Position=(0+30,30)=(30,30)
Walks 30m South: Moving South decreases the vertical (y-axis) position.
New Position=(30,30−30)=(30,0)
Walks 30m West: Moving West decreases the horizontal (x-axis) position.
Final Position=(30−30,0)=(0,0)
Conclusion
As seen from the calculations, the movements form a perfect square with a side of 30m. Opposite movements cancel each other out:
The person arrives precisely back where they began.
Correct Answer
The correct option is (b) Starting point.