Four reasons to keep your money in a financial institution like a bank are: Its the safest place for your money. In the case of burglaries or any such misfortune, a financial institution is the safest option. Interest rate is an added incentive for keeping your money in an institution. Money usually keeps losing and gaining value. In a bank it will keep earning you an interest on your savings. It is easy to manage your cash, keep track of your expenditures and savings. Value-added facilities provided by these financial institutions are also an attractive incentive.
It depends on which course you're studying. Different nomads had different reasons. I'm sorry I wasn't able to give you a better answer.
It would be A since it includes both GDP
