Final answer:
Two motorcycles traveling due east can have different velocities.
Step-by-step explanation:
The correct answer is B) They have different velocities.
Velocity is a vector quantity that specifies both speed and direction. Even if two motorcycles are traveling due east, they could have different velocities if they are traveling at different speeds.
For example, if Motorcycle A is traveling at 50 km/h due east and Motorcycle B is traveling at 70 km/h due east, they have different velocities despite traveling in the same direction.