Question

question 3
what is the medium of this wave?
the faucet
the energy
the water
simulations used in this interactive are by phet interactive simulations
university of colorado boulder, licensed under cc - by - 4.0 (https://phet.colorado.edu).

Explanation:

A wave medium is the substance that carries a wave. In the case of water waves, the medium is water. The faucet is just a source that can create waves in water, and energy is what is transferred by the wave, not the medium itself.

Answer:

The Water