Final answer:
Competence is the professional standard that requires management accountants to continually develop their knowledge and skills.
Step-by-step explanation:
The correct answer is B. Competence.
Competence is one of the professional standards that require management accountants to continually develop their knowledge and skills. This means that management accountants should strive to stay up-to-date with the latest industry trends, techniques, and regulations in order to effectively perform their job responsibilities.
For example, management accountants may attend professional development courses, participate in professional organizations, or pursue additional certifications to enhance their competency.