Concept: Wave can be defined as the disturbance or oscillation in a medium or a field (electric or magnetic field used in Electromagnetic waves) from its mean position, which carries energy from one point to another without displacing from its original position. In general, these waves can be classified into three types .1.Mechanical waves:The wave which can only be propagated in a material medium is termed as mechanical waves. Examples: water waves, waves along a stretched string, seismic waves (earthquake), sound waves, etc. 2.Electromagnetic waves: The waves which are caused because of the oscillating electric and magnetic field are termed as electro magnetic waves.E.Mwaves don’t require any medium for propagation. Examples: Light waves or also known as Photon is a best and only example of electromagnetic waves 3.Matter Waves: The waves that are associated with the motion of particles like electron, proton, etc. are termed as matter waves. Explanation: From the above explanation, we can see that, A wave is just a disturbance in a medium or field that propagates energy and momentum from one place to the other without the transport of matter. And Light waves, radio waves, microwaves are are part of electromagnetic waves with the difference in their energy distribution .Hence the correct answer is option3. i.e. Sound wave which is mechanical waves.