A check that has been paid is called a cashiers check
<span>-They help to prevent bank runs by reassuring the public that banks will not make too many loans and run out of cash.
-They help to facilitate transfers of funds between banks when a customer from one bank writes a check to a customer of another.
-They help to control the money supply.
Hope I helped </span>
Answer:
it's the last one, all of the others don't make enough sense