Final answer:
It is generally not acceptable for a Supervisory Appraiser to limit a Trainee Appraiser to only one appraisal approach, as trainees should gain experience in all applicable methodologies for professional development.
Step-by-step explanation:
Whether it is acceptable for a Supervisory Appraiser to only permit their Trainee Appraiser to assist in the appraisal of single-family residences using solely the sales comparison approach depends on regulatory guidelines and the objectives of the training program. However, typically, choice B is correct: No, a Supervisory Appraiser should ensure the Trainee receives experience in all applicable valuation methodologies and approaches to value. This is essential for the trainee to become a well-rounded appraiser capable of handling a variety of appraisal situations and methodologies.
It's important in their professional development that trainees are exposed to different approaches such as the cost approach and the income approach in addition to the sales comparison approach.