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An electric field of $1500\, V / m$ and a magnetic field of $0.40\, weber / meter^2$ act on a moving electron. The minimum uniform speed along a straight line the electron could have is
  • A$1.6 \times 10^{15}\, m / s$
  • B$6 \times 10^{-16}\, m / s$
  • C$3.75 \times 10^{3}\, m / s$
  • D$3.75 \times 10^{2}\, m / s$
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