During a One-Hour Trip, a Small Boat Travels 80

Multiple Choice

During a one-hour trip, a small boat travels 80.0 km north and then travels 60.0 km east.
-What is the magnitude of the boat's average velocity for the one-hour trip?

A) 20 km/h
B) 100 km/h
C) 140 km/h
D) 10 000 km/h
E) 20 000 km/h