What must happen if a buyer wants to switch from one buyer's agent to another?

Option A is incorrect because buyer representation agreements are contractual obligations, not casual relationships. Buyers cannot freely switch agents at any time without properly terminating their existing agreement, as this could breach contract terms and expose them to legal liability.

Option C is incorrect because buyers are not automatically responsible for paying both agents full commission when switching agents. Payment obligations depend on the terms of the original agreement and whether the buyer procures a property through the new agent.

Option D is incorrect because commission splitting is negotiated between brokers, not between agents. The original agent's commission claim would be addressed through the termination process of the original agreement, not through a pre-agreed split with another agent.