Solution

The cuttlefish/ Sepiida belongs to the group of Cephalopoda.
They can swim by using their fins. They move by sweeping water from its body. This is known as the type of jet propulsion for movement.
The water flows into the mantle cavity and over the gills through an opening by the head.
The mantle builds internal pressure by sealing off all orifices, with the exception of a tube called the funnel or siphon.
The thick muscles of the mantle wall contract and squeezes the water out of the narrow funnel with enough force to propel the animal in a speedy bust. This is known as the water or jet propulsion mechanism.
Thus, the correct answer is option D.