What process allows the legal regulation of the use of professional titles?

The correct answer is certification, as it is a formal process through which individuals demonstrate that they possess the necessary qualifications and competencies for their professional roles. By achieving certification, professionals are licensed to use specific titles, which ensures that they meet established industry standards and adhere to ethical practices. This process often involves the completion of required education, passing relevant examinations, and maintaining continuing education to ensure ongoing competence in the field.

Conversely, the other options do not relate to the legal regulation of professional titles. Cathodal regulation is not a recognized term in the context of professional title regulation. Cardiac catheterization refers to a medical procedure used to diagnose and treat certain heart conditions, which does not pertain to title regulation. Bursitis examination is related to the assessment of bursitis, an inflammation of the bursae, and does not address professional title regulation either.