Final answer:
Real estate professionals are ultimately responsible for providing OREC with documentation of their completion of continuing education.
Step-by-step explanation:
In the context of the question, the responsibility to furnish OREC (which stands for the Occupational Real Estate Commission) with documentation on completion of continuing education ultimately falls on the real estate professionals themselves. When real estate professionals complete their required continuing education courses, they are typically given certificates of completion or other forms of documentation. It is then their responsibility to submit these documents to OREC as proof of their compliance with continuing education requirements.