Which of the following statements best describes the wave velocity at Points A and B, and the transverse velocity of Points A and B?

A. The wave velocities are in the same direction, and the transverse velocities of Points A and B are moving in the same direction.
B. The wave velocities are in the same direction, but the transverse velocities of Points A and B are moving in different directions.
C. The wave velocities are in different directions, but the transverse velocities of Points A and B are moving in the same direction.
D. The wave velocities are in different directions, and the transverse velocities of Points A and B are moving in different directions.
E. Nothing can be said without first knowing the exact direction of the travelling wave.