Final answer:
Maintaining an appropriate level of professional expertise by continually developing knowledge and skills is an indication of competence under the Standards of Ethical Conduct.
Step-by-step explanation:
Maintaining an appropriate level of professional expertise by continually developing knowledge and skills is an indication of competence under the Standards of Ethical Conduct. This means that individuals should strive to stay updated and enhance their skills to ensure their work is of high quality and meets professional standards. For example, a business consultant attending industry conferences and workshops to learn about the latest trends and strategies shows a commitment to maintaining professional expertise.