If an Electron Has the Same De Broglie Wavelength as the Wavelength

Multiple Choice

If an electron has the same de Broglie wavelength as the wavelength of a 390-nm photon in vacuum,what is the speed of the electron? (m_electron = 9.11 × 10^-31 kg,c = 3.0 × 10⁸ m/s,h = 6.626 × 10^-34 J ∙ s)

A) 1,900 m/s
B) 2,100 m/s
C) 1,700m/s
D) 1,500 m/s
E) 540 m/s