The Ranger oilfield complex consists of two fields: Ranger A and Ranger B. Your task is to evaluate the water-flooding performance of these two reservoirs. Assume the reservoir conditions are analogous to those used in the Buckley-Leverett immiscible displacement theory, i.e., the reservoir is horizontal and operates with a line drive water-flood pattern, it is homogeneous and isotropic, and voidage is maintained so that the reservoir pressure is constant. The evaluation is to be performed using the relative permeability data measured for each field