Final answer:
A valid exclusive right to sell listing contract obligates the seller to pay a commission to the broker if the broker performs according to the terms of the contract, regardless of who finds the buyer.
Step-by-step explanation:
A valid exclusive right to sell listing contract is an agreement where the seller grants to a real estate broker the exclusive right to sell the property and to receive a commission for the sale of the property, whether the property is sold by the broker, the seller, or anyone else. The correct answer to the student question about what a valid exclusive right to sell listing contract requires is: b. Requires the seller to pay the broker a commission if the broker performs in accordance with the terms of the listing contract. This type of contract obligates the seller to pay the agreed-upon commission to the listing broker if the property is sold within the term of the contract, regardless of who ultimately procures the buyer.