$A$ proton has a mass $1.67 \times 10^{-27} \,kg$ and charge $+1.6 \times 10^{-19} \,C$. If the proton is accelerated through a potential difference of $1$ million volts,then the kinetic energy is ......... $J$.

• A
  $1.6 \times 10^{-15}$
• B
  $1.6 \times 10^{-13}$
• C
  $1.6 \times 10^{-21}$
• D
  $3.2 \times 10^{-13}$