Final answer:
The correct answer is option D) Follow the organization's procedures concerning resolution of such a conflict.
Step-by-step explanation:
The first action a management accountant should take in confronting a potential ethical conflict concerning their direct supervisor is to follow the organization's procedures concerning resolution of such a conflict. This means adhering to the established guidelines and protocols within the organization for handling and addressing ethical conflicts.
By doing so, the management accountant ensures that the issue is dealt with in a systematic and fair manner.