When both particles, the electron and the proton move at the same speed, they may have differences with their de Broglie wavelength, the particle that would have a longer wavelength would be the proton since the wavelength is in direct proportionality with the mass of the particle.
You're answer is B. P waves are more dynamic and have a great autonomy to be able generate a earthquake.
The correct answer is C. Taiga hope it helps ( :
Answer: Around 364 to 480
