A proton, an electron and an alpha particle have the same energies. Their de-Broglie wavelengths will be compared as :

A

$$\lambda_\alpha < \lambda_p < \lambda_e$$

B

$$\lambda_e > \lambda_\alpha > \lambda_p$$

C

$$\lambda_p > \lambda_e > \lambda_\alpha$$

D

$$\lambda_p < \lambda_e < \lambda_\alpha$$