A mortgage loan document is full of terms and conditions and includes information on prepayment penalties, which come into effect at what stage in the process?

These are charged to a seller who is paying a loan off prior to the maturity date.

They can be added at any time during the life of a mortgage loan.

These are additional costs incurred if the loan is offered but not taken.

They are charged to a seller who is paying a loan off after the maturity date.