Given that reserves are scarce. The Fed decides to increase the required reserve ratio but wants to keep the federal funds rate target unchanged. How can the Fed use open market operations to accomplish this policy.

• Demand Reserves [ Select ] ["shifts left", "remains unchanged", "shifts right"]
• Type OMO [ Select ] ["Open market purchase", "Open market sale"]
• Supply Reserves [ Select ] ["shifts right", "shifts left", "remains unchanged"]