In a chain of title where an investor's friend did not record a mortgage on a vacant lot, and the buyer buys the lot for value without notice and later learns of the mortgage, whose lien is enforceable in a notice jurisdiction?

• A. The friend's unrecorded mortgage is enforceable because it attached at the time and the buyer is liable.
• B. The investor's mortgage remains enforceable against the buyer.
• C. The bank's mortgage is the only enforceable lien against the buyer.
• D. The buyer takes title free of any mortgage due to notice jurisdiction.

Answer: (C)