Usually the borrowing firm of term loans promises to repay ______.A．the principal and interest until the end of the loan periodB．the principal and interest at the end of the loan periodC．the loan in a series of installmentsD．at any time when cash is more

Usually the borrowing firm of term loans promises to repay ______.

A．the principal and interest until the end of the loan period

B．the principal and interest at the end of the loan period

C．the loan in a series of installments

D．at any time when cash is more abundant ______.