Answer:A. Principal, interest, and escrow for taxes and insurance
Explanation: Front-end ratio is a percentage of your total annual gross income which can be dedicated to the payment of your home loan monthly.
Back-end ratio is a term used to describe the total percentage of your annual gross income which you can put into the servising of your debts.
The maximum monthly payment which a household can sustain covers the PRINCIPAL, INTEREST, AND ESCROW FOR TAXES AND INSURANCE When calculating the maximum home price using either the front ratio or the back ratio.