Which of the following is true of a fully amortized loan?

A$.$ The amount of the payment applied to the principal remains the same during the loan period.

B$.$ Equal amounts of the payment are applied to the principal, interest, taxes, and insurance.

C$.$ Additional payments applied to the interest during the loan period reduce the number of monthly payments required.

D$.$ Additional payments applied to the principal during the loan period reduce the number of monthly payments required.