An Electron Has the Same De Broglie Wavelength as the Wavelength

Multiple Choice

An electron has the same de Broglie wavelength as the wavelength of a 1.8 eV photon.What is the speed of the electron? (m_electron = 9.11 × 10^-31 kg,c = 3.00 × 10⁸ m/s,1 eV = 1.60 × 10^-19 J)

A) 1,100 m/s
B) 980 m/s
C) 910 m/s
D) 840 m/s
E) 770 m/s