A particle has a de Broglie wavelength $\lambda$ and kinetic energy $E$. What is the relationship between $\lambda$ and $E$?

A.     $\lambda  \propto {E^{\frac{1}{2}}}$

B.     $\lambda  \propto E$

C.     $\lambda  \propto {E^{ - \frac{1}{2}}}$

D.     $\lambda  \propto {E^{ - 1}}$

C