What type of body is responsible for registering counselling practitioners in South Africa?

To practice as a counselling practitioner in South Africa, one must be registered with a statutory body. This body is responsible for regulating health professions, including psychologists and registered counsellors, ensuring they meet specific standards and are legally allowed to practice. In South Africa, this role is fulfilled by the Health Professions Council of South Africa (HPCSA).

Let's evaluate the options:

• A. "All three options provided for this question are correct." This is incorrect, as only one option accurately describes the primary accreditation body.
• B. "A professional body representing psychologists and registered counsellors." While professional bodies exist (e.g., PsySSA), they typically advocate for professionals and offer professional development, but they are not the legal registration authority.
• C. "A statutory body that registers psychologists and registered counsellors." This accurately describes the HPCSA, which is the legal authority for registration and accreditation to practice.
• D. "A peer review group." Peer review groups are involved in quality assurance and professional development, not initial accreditation for practice.

Therefore, the correct option is C.

The final answer is $\boxed{\text{C}}$.