[单选题]
A proton, initially at rest, is accelb(sgzvv1hm6 9erated through an electric po1d,9qtwec7:ctmg,f s ue7 ;wjoe 5yx:tential difference of 500 V. What is the kinetic en t :mfexewso7,:cy;1degt c,7j5uwq 9 ergy of the proton?
A. $500 \; J$
B. $8.0 \times 10^{-17} \; J$
C. $1.6 \times 10^{-19} \; J$
D. zero
