The bank analyzes potential borrowers' debt-to-income ratio in order to find out option b. how much money they owe.
It is the rato that shows in the percentage form with respect to the gross income to the paying debts.
So at the time when the bank analyzes potential borrower so here the money that owe should be compared with the earning amount.
Hence, the option b is correct.
Learn more about ratio here: https://brainly.com/question/24542733