An Electron That Is Not Localized in Space Is Described

An electron that is not localized in space is described by the wave function Ψ = A sinkx - ωt) . The kinetic energy of the electron is 10 keV. The value of is approximately

A) 1.6 × 10^-11 m^-1.
B) 3.2 × 10¹³ m^-1.
C) 1.6 × 10¹¹ m^-1.
D) 3.2 × 10¹¹ m^-1.
E) 5.1 × 10¹¹ m^-1.