Fishes Have a Lateral Line System Consisting of Canals Under

Fishes have a lateral line system consisting of canals under the surface of the skin.These canals contain sensory structures consisting of hair cells capped by a cupula.These structures look similar to those found in our semicircular ducts.When a fish swims, a stream of water flows through the lateral line canals.The most likely function of the lateral line sensory system is to sense

A) movements and pressure changes in the water.
B) the depth of the water.
C) chemical substances in the water.
D) electrical currents in the water.
E) spatial orientation based on gravity.