Avery obtained a home loan from Happy-to-Lend Bank. He can no longer afford to pay his mortgage, but he wants to avoid foreclosure, so he listed it with Campbell Realty to help him sell it for less than he owes. He receives an offer from a buyer. Whose consent does Avery need to complete the sale?
A. Happy-to-Lend Bank
B. His broker's
C. The buyer's agent
D. The foreclosure court