Calculate the uncertainty in velocity of an electron if the uncertainty in its position is of the order of $1A^{\large\circ}$

Question

$\begin{array}{1 1}(a)\;4.8\times 10^5m/s&(b)\;5.8\times 10^5m/s\\(c)\;5.8\times 10^2m/s&(d)\;2.3\times 10^5m/s\end{array}$