Final answer:
According to the AQB, a Trainee Appraiser is competent to inspect a property unsupervised when the Supervisory Appraiser deems them competent.
Step-by-step explanation:
Trainee Appraiser Competency in Property Inspections
According to the Appraisal Qualifications Board (AQB), a Trainee Appraiser is competent to inspect a property unsupervised when the Supervisory Appraiser deems the trainee competent. There are no specific requirements in terms of hours of appraisal experience or number of properties inspected for a trainee to be considered competent. The trainee's competency is evaluated by the supervisory appraiser based on their knowledge, skills, and abilities.
Therefore, the correct answer to the question is B) When the Supervisory Appraiser deems the Trainee competent.