The text explicitly states that communicating with clients respecting their culture and engaging stakeholders in polite conversation are examples of building rapport Rapport is a close and harmonious relationship in which the people or groups concerned understand each others feelings or ideas and communicate well While BCBAs must avoid dual relationships and maintain professional boundaries developing a positive and trusting relationship with clients and their families stakeholders is essential for effective service delivery This trust and cooperation built through rapport are foundational for successful assessment intervention implementation and generalization of skills Without rapport stakeholders may be less inclined to follow through with recommendations and clients may be less motivated to participate Option A is incorrect as rapport building does not directly address dependency Option B is incorrect because rapport facilitates rather than replaces protocol adherence Option D while some data might be informally gathered it is not the primary purpose of these relationshipbuilding actions the primary purpose is the positive relationship itself which then supports all other aspects of intervention