The rate of reaction between two `A` and `B` decreases by factor `4` if the concentration of reactant `B` is doubled. The order of this reaction with respect to `B` is

The rate of reaction between two reactants A and B decreases by factor 4 if the concentration of reactant B is doubled. The order of this reaction with respect to B is

The rate of reaction between two reactants A and B decreases by a factor of 4 if the concentration of reactant B is doubled. The order of this reaction with respect to reactant B is

The rate of reaction between two reactants A and B increases by a factor of 4 if the concentration of reactant B is doubled. The order of this reaction with respect to reactant B is

The rate of reaction between two reactants A and (B) decreases by a factor of 4 if the concen tration of reactarit B ' is doubled. The order of this reaction with respect to the reactant B is