$0100$ - page fault, addresses till $199$ in memory
$0200$ - page fault, addresses till $299$ in memory
$0430$ - page fault, addresses till $529$ in memory
$0499$ - no page fault
$0510$ - no page fault
$0530$ - page fault, addresses till $629$ in memory
$0560$ - no page fault
$0120$ - page fault, addresses till $219$ in memory
$0220$ - page fault, addresses till $319$ in memory
$0240$ - no page fault
$0260$ - no page fault
$0320$ - page fault, addresses till $419$ in memory
$0410$ - no page fault
So, $7$ is the answer- (C)