Final answer:
The Trainee Appraiser is not authorized to affix a seal to an appraisal report.
Step-by-step explanation:
The correct answer is Trainee Appraiser (C).
A Trainee Appraiser is not authorized to affix a seal to an appraisal report. The other options, Certified Residential Appraiser (A), Licensed Residential Appraiser (B), and Certified General Appraiser (D), are all qualified appraisers who have the authority to affix a seal to an appraisal report based on their certification level.