According to the law of agency, sellers who contract with real estate brokers to market their property and represent them in the sale of their property are

Agents are individuals authorized to act on behalf of principals in transactions. In this scenario, real estate brokers serve as agents for the sellers, not the other way around. Therefore, the term "agents" does not apply to sellers; instead, it describes the relationship that brokers have with the sellers.

The term grantor typically refers to a person who transfers property rights or interests, often in the context of a deed or trust. While sellers may grant rights to brokers through contractual agreements, grantor is not the correct term in the context of agency relationships, where the focus is on the representation and authority given to the agent.

Customers generally refer to individuals who engage in transactions without the formal agency relationship. In real estate, while sellers may have customers, they themselves are not categorized as customers when they are contracting with brokers to represent them in the sale of their property.