Question: Electric eels are actually not true eels. They are in the family Gymnotidae, which are commonly known as weakly electric knifefish, and they are native to freshwater rivers of the Neotropics. These fishes are often called eels because they swim much like eels, which look like snakes creating "c" shapes with their body to pass waves down their body and propel forward. This type of swimming is called? Need Assignment Help? Question options: A) Modulation B) Undulation C) Oscillation D) Ostraciform