A Beam of Electrons Q = 1

A beam of electrons q = 1.6 × 10^-19 C) is moving through a region of space in which there is an electric field of intensity 3.4 × 10⁴ V/m and a magnetic field of 2.0 × 10^-3 T. The electric and magnetic fields are so oriented that the beam of electrons is not deflected. The velocity of the electrons is approximately

A) 6.8 × 10⁶ m/s.
B) 3.0 × 10⁸ m/s.
C) 6.0 × 10^-9 m/s.
D) 0.68 km/s.
E) 1.7 × 10⁷ m/s.