22,23,24 help pls

QUESTION 22 Both A and B took out 30-year mortgages. A had a payment of $2200. B had a payment of $2000. All else equal, who borrowed more money? OB O AB QUESTION 23 Both A and B took out 30-year mortgages. A paid his off in 25 years. B paid hers off in 29 years. All else equal, who paid more interest? OA O AB QUESTION 24 Investment A has a quarterly interest rate of 4%. Investment B has a monthly interest rate of 1%. Which investment has the higher EAR? OB