[单选题]
A proton, initially at rest, isrg6jz46 iu:rro 3vgsi2a4j/h accelerated through an electric pote rdrz215q6g2 hvdd +xintial difference of 500 V. What is the kinetic energy of the pr2h2drvxgi1 zd+d5r 6qoton?
A. $500 \; J$
B. $8.0 \times 10^{-17} \; J$
C. $1.6 \times 10^{-19} \; J$
D. zero