Which of the following are common types of single agency?

Seller agency and buyer agency are common types of single agency because they represent the interests of one party in a real estate transaction. In a seller agency, the agent represents the seller exclusively, helping them to market the property, negotiate the sale, and navigate the complexities of real estate transactions while advocating for the seller's best interests. Conversely, buyer agency involves an agent representing the buyer exclusively, assisting them in finding suitable properties, negotiating purchase terms, and ensuring the buyer's rights and interests are protected throughout the buying process.

The other answer choices involve different agency relationships or might describe combinations of roles that do not align with the concept of single agency. Limited agency and dual agency refer to scenarios where an agent may represent more than one party, which is not characteristic of single agency. Confidential agency and open agency, as well as personal agency and corporate agency, do not specifically define the standard representation roles focused on either buyers or sellers, thereby not fitting the typical single agency framework encountered in real estate practices.