Boris Can Write Checks on His Account at City Bank

Multiple Choice

Boris can write checks on his account at City Bank. Demi steals the checks, forges Boris's signature, and cashes the checks at City. The bank is excused from any liability if, after receipt of the first forged check, Boris fails to report the forgeries within​

A) ​one month.
B) ​one day.
C) ​one year.
D) ​six months.