A Massachusetts listing contract may be oral, making B correct. The Massachusetts Board ' s current Contract Law curriculum expressly identifies listing agreements as employment contracts and states that they may be in writing or oral.

The other choices implicate Massachusetts Statute of Frauds requirements. An agreement for the purchase and sale of real estate must generally be evidenced by a sufficient signed writing to be enforceable against the party to be charged. Likewise, an agreement that by its terms cannot be performed within one year falls within the Statute of Frauds; a twenty-year lease therefore cannot rely on a bare oral agreement for ordinary enforceability.

This does not mean oral listing agreements are good brokerage practice. Written agreements provide much stronger evidence concerning price, term, commission, scope of authority, agency relationship, and other duties. Certain brokerage or consumer disclosures also have independent statutory or regulatory requirements and must not be confused with whether the underlying listing employment agreement can technically be oral.

For exam purposes, the Massachusetts-specific rule is clear: listing agreement = potentially oral; purchase/sale of real estate = writing required for enforceability.

Study Guide Reference: Contracts — Statute of Frauds; listing agreements and purchase-and-sale contracts.