The main role of banks in the nation's economy is to

store, lend, and invest money.

store, lend, and borrow money.

store, lend, and distribute money.

store, lend, and approve money.

With both is stored and provided, is the main function of every bank, for its purpose is savings and loans, but the difference is that the first option is reversed and the second is distributed, in this case the most successful is the C, Because the end of every bank is to distribute the money that has entered.