refers to the movement of sediment along the beach. Tidal current Turbidity current Wave refraction Longshore drift

The correct term that refers to the movement of sediment along the beach is Longshore drift.

Explanation:

Longshore drift is a coastal process that occurs due to the action of waves hitting the shore at an angle. This movement causes sediment, such as sand and gravel, to be transported along the coastline. The waves push sediment up the beach during their swash and pull it back down during the backwash, resulting in a zigzag pattern of sediment movement along the shore.

In contrast, tidal current refers to the flow of water associated with the rise and fall of tides, while turbidity current involves the underwater flow of sediment-laden water. Wave refraction is the bending of waves as they approach the shore but does not directly refer to sediment movement like longshore drift does.