Final answer:
A concurrent reporting senior can extend a concurrent report by following organizational procedures, submitting a request, and providing reasons within the set time frame for evaluations.
Step-by-step explanation:
The question pertains to the process by which a concurrent reporting senior can extend a concurrent report within the context of performance evaluations or reviews, which is a common procedure in military or corporate settings. While the specific methods for extending a concurrent report can vary depending on organizational guidelines or regulations, generally, a concurrent reporting senior might extend a concurrent report by submitting a written request or documentation in accordance with established policies, providing valid reasons for the extension, and ensuring any extension adheres to the regulatory time frame set forth for performance evaluations.