An Electron Passes Through a Region Where There Is an Electric

An electron passes through a region where there is an electric field E = 4.0 $\times$ 10⁵ V/m and a magnetic field B = 0.090 T.The directions of the electric field,the magnetic field,and the electron velocity are mutually perpendicular.If the electron is not deflected from its straight-line path through these fields,its velocity must be

A) 3.6 $\times$ 10⁴ m/s
B) 5.0 $\times$ 10⁵ m/s
C) 2.2 $\times$ 10^-7 m/s
D) 1.2 $\times$ 10⁴ m/s
E) 4.4 $\times$ 10⁶ m/s