Which of the following cannot provide advice to a farmer? All of the individuals in this list can provide advice to a farmer. provided they are supervised by a PAg. TechAg: Technical Agrologist Student Affiliate AAg: Articling Agrologist.supervised by a PAg.

The answer is **Student Affiliate**.<br /><br />While a Student Affiliate may be learning about agriculture and may even have some practical experience, they haven't yet met the requirements for professional certification. Therefore, they are not qualified to provide advice to a farmer in a professional capacity. The other designations (TechAg and AAg, with the specified supervision) indicate levels of professional certification and experience that qualify them to give advice.<br />