Assuming you keep the soil thickness constant, how does increasing the crop coefficient affect the green roof water balance? Assuming you keep the soil thickness constant, how does increasing the crop coefficient affect the green roof water balance?

Select one:a$.$ Same effect as increasing soil thickness $($when crop coefficient is constant$)$b$.$ Increasing the crop coefficient has no effect on the green roof water balance.c$.$ Opposite effect as increasing soil thickness $($when crop coefficient is constant$)$