An important ethical concern for behavior analysts involves special cautions in interactions with a client in any capacity outside of the role of behavioral practitioner. For example, it may be difficult to decide what to do when a client offers a small kindness or gift of appreciation for services received, or invites the behavior analyst to attend social, nonprofessional events. However, one must take care to avoid violation of ethical codes regarding conflicts of interest and ______ relationships. a. dual b. multiple c. friendly d. Both A and B are correct.