There are two key elements of designing and implementing supervision and training. What is one critical element and the most correct one? a. Specific disciplinary requirements are grounded in the principles of ABA. b. Supervision, unlike interventions, has a research evidence base. c. The supervisor has the responsibility to keep up with these advances in training. d. The supervisor is responsible and accountable for the record of what transpired, agreements and obligations, follow-up, evaluations of the supervisee, and all issues discussed