Property characteristics data should be thoroughly ______ and _____ to ensure quality control.

The correct choice emphasizes the importance of rigorous handling and evaluation of property characteristics data to maintain high standards of quality control. By being thoroughly edited, the data undergoes a process of correction and refinement, eliminating any mistakes or inconsistencies that could undermine its integrity. Testing the data further assesses its accuracy, reliability, and completeness, ensuring that the information meets predefined standards before it is used for decision-making or reporting.

The context of property assessment requires meticulous attention to detail, as errors in data can lead to significant consequences in tax assessments and property evaluations. Thus, the combination of editing and testing is crucial in the quality assurance process. Other options, while relevant, do not convey the same level of critical scrutiny that editing and testing imply in relation to data integrity.