In a Fractional Reserve Banking System,how Does an Increase in the Reserve

In a fractional reserve banking system,how does an increase in the reserve requirement change the money multiplier?
a.The money multiplier increases by a higher percentage change than the increase in the reserve ratio.
b.The money multiplier decreases by a higher percentage change than the increase in the reserve ratio.
c.The money multiplier increases by a lower percentage change than the increase in the reserve ratio.
d.The money multiplier decreases by a lower percentage change than the increase in the reserve ratio.