If a charged particle goes with uniform acceleration in a region containing uniform electric field $\left(\overrightarrow{E}\right)$ and uniform magnetic field $\left(\overrightarrow{B}\right)$ then

• A

  $\left(\overrightarrow{E}\right)$ must be perpendicular to $\left(\overrightarrow{B}\right)$

• B

  $\overrightarrow{V}$ must be perpendicular to $\left(\overrightarrow{E}\right)$

• C

  $\overrightarrow{V}$ must be perpendicular to $\left(\overrightarrow{B}\right)$

• D

  $\overrightarrow{V}$, $\left(\overrightarrow{B}\right)$ and $\left(\overrightarrow{E}\right)$ must be parallel