Final answer:
A mortgage note must be signed by the mortgagor to be valid. It outlines the terms of the loan and serves as a promise to repay. Recording is related to the mortgage, not the note itself.
Step-by-step explanation:
The question: A mortgage note must be: falls under the category of Law, specifically real estate law which deals with the legal aspects of property transactions. The correct choice in this instance is B. Signed by the mortgagor. A mortgage note, also known as a promissory note, is a document that states the borrower's (mortgagor's) promise to repay a loan. It outlines the terms of the loan and is indeed a negotiable instrument; however, the essential legal requirement for the mortgage note's validity is the signature of the mortgagor, not the mortgagee. The note by itself does not need to be recorded to be valid; the recording is related to the mortgage or deed of trust which secures the note with the property. Therefore, the signature by the mortgagor makes the mortgage note enforceable.