What must all applicants provide for a license if additional materials are required?

The requirement for all applicants to provide missing items as part of their license application is essential because it ensures completeness and compliance with the application process. When an application is submitted, it may not always include all necessary documents. Consequently, if certain materials are required to meet the licensing criteria, the applicant must submit these missing items to fulfill the prerequisites. This approach aligns with the objective of maintaining a standardized and efficient application process, where all necessary documentation is provided for review.

The other options, while relevant to the application process, do not capture the essence of specifically addressing the need to provide additional materials. A new application form would not be required unless there was a fundamental change in the applicant's information. Proof of residency is typically a standard document required from the outset and does not pertain to missing additional materials. Background check authorization is also commonly required but focuses on security and suitability rather than supplementing a deficient application. Hence, submitting missing items directly addresses the need to complete the application to ensure that applicants meet all licensing requirements.