After the crash, thousands of american banks closed, because they
a. had to print new money.
b. could not return depositors��� money.
c. had invested in european banks.
d. charged too high an interest rate.
After the crash, thousands of American banks closed, because they B) could not return depositors' money. They didn't have any choice but to close down, given that there was no money left to return to anyone.
