During the loan application process, which of the following documents specifies the time period that...

A rate lock agreement is the document that specifies the time period during which a mortgage lender agrees to hold the interest rate at a certain percentage for the borrower. It guarantees that the rate will not change, even if market interest rates fluctuate, as long as the loan closes within the agreed-upon timeframe.

The loan application (A) initiates the mortgage process, but it does not secure the interest rate.

A preapproval letter (B) gives a preliminary loan approval but does not lock the rate.

The Closing Disclosure (C) provides final loan terms but does not set the rate lock.