According to the BACB Professional and Ethical Compliance Code for Behavior Analysts specifically Section 413 Discontinuing Services behavior analysts may discontinue services when clients or stakeholders are noncompliant and it significantly hinders the clients progress or the effectiveness of the intervention However discontinuing services must be done responsibly and ethically without abandoning the client Option D is correct because it aligns with ethical guidelines When a behavior analyst determines that services are no longer beneficial due to stakeholder noncompliance they are ethically permitted to discontinue The critical component is the development of a transition plan This plan ensures that the clients needs are still addressed ideally by referring them to another qualified provider thereby preventing abandonment Option A is incorrect because continuing services indefinitely when they are not beneficial due to noncompliance is not an ethical requirement and can be a disservice to the client wasting their time and resources The code explicitly allows for discontinuation under such circumstances Option B is incorrect because immediately terminating services without a transition plan constitutes client abandonment which is a severe ethical violation Behavior analysts have a responsibility to ensure a smooth transition of care Option C is incorrect because explicit permission from a noncompliant parent is generally not required to discontinue services when the noncompliance is directly impeding the clients progress and the analyst has made reasonable efforts to address it The primary ethical obligation is to the clients best interest which includes ensuring effective treatment or appropriate referral