Kinematics Lesson 2 - The difference between displacement and distance

If you have understood the above video, try out the following quiz question to test your understanding :

Question
--------------
After dropping her daughter in school, Susan decided to walk to the nearby park. She walked 0.8km (as shown in the below diagram), made a left turn, walked another 0.6km, then turned towards the park and walked another 0.8km to reach the entrance of the Park. However, the park was closed for renovation work. So she decided to go to the nearby supermarket to get some groceries. She walked another 1.3km to reach the entrance of the supermarket as shown in the diagram. What is the magnitude of her displacement from the entrance of the supermarket to where she started off at the school entrance?

(A) 1.1 km

(B) 1.3 km

(C) 3.5 km

(D) 4.8 km