PLEASE HELP!! What does the phrase waves lapping mean in the following sentence?

He fell asleep listening to the waves lapping onto the shore and dreamed of tiny turtles being
drawn to the sound.

A The waves are making a lapping sound as they hit the beach and pull out into
the ocean

B The waves are moving in a circular pattern like a person running laps around a
track

C The waves are pulling in the water like a dog laps up water when it drinks.

D The waves are covering the beach like a baby lapped in blankets.