A. North
B. East
C. West
D. South
🧠 Explanation:
A man walking 3 km east, 3 km north, then 3 km west is north of his starting point. For math students, this highlights coordinate geometry, making it a key topic for studying spatial reasoning, navigation, and problem-solving. The path forms a displacement. Understanding this ensures accurate directional calculations. It’s essential for mastering geometric applications in real-world scenarios. Studying such problems offers insights into spatial analysis, crucial for math, geography, and engineering, ensuring precise navigation or planning solutions in practical contexts.