What Is the Approximate Uncertainty in the Position of a Proton

What is the approximate uncertainty in the position of a proton 1.673 * 10^-27 kg) in a particle accelerator if its velocity is known to about $\pm$ 2.5 m/s (total uncertainty is 5.0 m/s) ?

A) ( $\pm$ 6.4 *10^-9 m)
B) ( $\pm$ 3.2 *10^-9 m)
C) ( $\pm$ 1.3 *10^-9 m)
D) ( $\pm$ 3.2 *10^-8 m)
E) ( $\pm$ 6.4 *1^-10 m)