To maximize the amount of profit realized from a rate increase, charges should be increased most in departments with

a. High charge payer mix/high write-offs for bad debt, charity, and discounts

b. Low charge payer mix/low write-offs for bad debt, charity, and discounts

c. High charge payer mix/low write-offs for bad bebt, charity and discounts

d. Low charge payer mix/high write-offs for bad debt, charity and discounts