Wave Transmission Analysis

A longitudinal wave propagates through a medium by causing particles of the medium to oscillate back and forth parallel to the direction the wave travels. Examples include sound waves.

Evaluating Transmission Options

Let's analyze what quantity is transmitted:

• Option 1: Material of the medium only - This is incorrect. While the medium's particles oscillate, they return to their equilibrium positions and do not travel along with the wave over long distances.
• Option 2: Energy only - This is often considered the primary transmitted quantity. However, a wave is a disturbance pattern (compressions and rarefactions in longitudinal waves) that propagates, requiring the medium's particles and their interactions. Simply stating 'energy only' might be considered an incomplete or potentially misleading description of the phenomenon itself, which inherently involves the medium's disturbance.
• Option 3: Both material of the medium and energy - This is incorrect because, as stated above, the material (particles) of the medium is not transmitted with the wave.

Conclusion on Transmission

Given that the material of the medium is not transmitted (ruling out options 1 and 3), and considering that the wave phenomenon is a disturbance involving the medium's particles and properties (making 'energy only' potentially inadequate or contextually incorrect), the most fitting answer, based on the provided options, is that none of the specific choices accurately and completely describe the transmitted quantity in isolation.

Therefore, the correct choice is none of the above.