Answer:
An indefinite period.
Explanation:
As the example given suggests, on being notified, the bank can pay or certify checks drawn by a deceased individual (in this case, Ben). on or before the date of his death, unless the heir or new person in charge of the account (in this case, Cathy) asks to stop all payments, for an indefinite period. So, unless the right forms are filled by the new head of the account, the bank will continue to draw, pay or certify checks.
