The Listing Agreement Stated That the Existing Loan Was to Be

The listing agreement stated that the existing loan was to be assumed. The broker received an offer per the exact terms of the listing except that the buyer wanted to put on a new loan. The seller refused the offer. The broker would be:

A) entitled to one-half the commission
B) entitled to no commission
C) entitled to a reimbursement for expenses
D) entitled to a full commission