Electrical, Electromagnetic, and Sound Energy Treatments Have Different Physical Mechanisms

Electrical, electromagnetic, and sound energy treatments have different physical mechanisms of action. However, which of the following is a common aspect that they share?

A) All of them rely on convection.
B) All of them compress tissues.
C) All of them heat tissues.
D) All of them produce vasoconstriction.
E) All of them rely on the piezoelectric effect.