Answer: The correct answer is amplitude.
Step-by-step explanation:
The two waves are shown in the problem. Each wave has the same frequency and velocity. However, Wave B carries more energy.
The amplitude is the maximum displacement moved by the particle from the equilibrium. It affects the energy of the wave. Amplitude of the wave determines how much energy it has. Large amplitude waves contain more energy. Low amplitude wave has a low energy wave.
For example in case of sound, the high amplitude sound is loud and the low amplitude sound is low.
Therefore, amplitude of the wave determines how much energy it has.