Given here are four sentences. The first sentence is in correct order, while the rest of the sentences are jumbled. Pick the option that gives their correct order.
A. Tilly saw the sea slowly rise, and start to foam and bubble.
B. Her Geography teacher had shown her class the video.
C. She had explained that tsunamis can be caused by earthquakes, landslides and volcanoes.
D. She remembered that she had seen this in a video of a tsunami.