Question

in which direction of the wave motion do longitudinal waves transfer energy?
perpendicular
parallel
close
equal

Explanation:

Longitudinal waves are waves in which the particles of the medium vibrate in the same direction as the wave is traveling. This means the energy transfer direction is parallel to the wave motion. In contrast, transverse waves have particle vibration perpendicular to the wave motion. The terms "close" and "equal" are not relevant in describing the direction of energy transfer for longitudinal waves in the context of wave - motion direction.

Answer:

B. parallel