Final answer:
A certificant can offer proprietary products to a client under the terms of a written agreement, ensuring full disclosure and alignment with the client's best interest. A definitive answer regarding the ability to offer such products depends on the specific terms of the agreement and ethical standards governing the certificant's practices.
Step-by-step explanation:
The question pertains to the ethical considerations involved when a certificant is presenting proprietary products to a client. Based on the typical ethical guidelines of financial services, a certificant may offer proprietary products under the terms of a written agreement with the client.
The crucial aspect here is that this offer must be made with full disclosure of all relevant terms and in the client's best interest, ensuring that there is no misrepresentation or withholding of information regarding the proprietary nature of these products. In absence of the specific terms of the written agreement, we cannot definitively say that the certificant can or cannot offer proprietary products, so the answer given 'Yes, but it can only be an oral agreement' is erroneous. Similarly, specify that 'No, and they are not mutually exclusive either' or 'No, but they are mutually exclusive' without additional context cannot be deemed accurate. Notably, the option 'Not enough information given to determine the answer' also cannot be selected confidently without further context of the ethical guidelines or terms of services in question.