Final answer:
All options given, including Compliance, Confidentiality, Integrity, and Objectivity, are indeed ethical responsibilities of a management accountant; none is incorrect.
Step-by-step explanation:
The ethical responsibilities of a management accountant include Compliance, Confidentiality, Integrity, and Objectivity. The option that does not belong to these responsibilities is Objectivity. These responsibilities are codified in professional standards and provide guidance on the behavior and decision-making process of management accountants.
Compliance refers to the need to adhere to laws, regulations, and professional standards. Confidentiality ensures that sensitive information obtained during the course of work is protected. Integrity relates to the honesty and fairness with which accountants are expected to conduct themselves. Incorrectly listed, Objectivity, in contrast, is an ethical responsibility, requiring accountants to remain unbiased, avoiding conflicts of interest and ensuring the accuracy and fairness of financial reporting.