An electric geyser has ratings 1000W, 220V marked on it. What should be the minimum rating in whole number of a fuse wire, that may be required for safe use with this geyser ?

Question

$\begin{array}{1 1} (a)\;5A \\ (b)\; 7A \\ (c)\; 9A \\ (d)\; 10A \end{array}$