A particle of mass m and charge q is placed at rest in a uniform electric field E and then released. The kinetic energy attained by the particle after moving a distance y is 

• A

  ${\mathrm{qEy}}^2$

• B

  ${\mathrm{qE}}^2\mathrm{y}$

• C

  $\mathrm{qEy}$

• D

  ${\mathrm{q}}^2\mathrm{Ey}$