Answer: Dual agency
Step-by-step explanation:
In the real state, the dual agency is the situation in which the agent of an organization are working both the seller and the customer in case of large brokerages system that is represented during the transaction.
In this dual agency system, we can easily access the more properties as it helps in representing the both sides phase in the real state.
The dual agency system basically offers no advantage or benefits to the consumers or customers. Therefore, Dual agency is the correct answer.