An example of an Administrative control is:

Administrative controls are strategies implemented to change the way tasks are performed to minimize risk and enhance safety. These controls primarily focus on changing work practices and policies.

In this context, the correct answer involves using paperwork, which is a fundamental aspect of administrative controls. Paperwork can encompass various forms such as safety protocols, training documentation, permits, and checklists that guide workers in adhering to safety standards and regulations. This administrative oversight ensures that all safety measures are communicated and complied with, significantly reducing the likelihood of accidents during workzone operations.

The other choices do not fall under administrative controls. Lane closures and channelization relate to physical alterations in the environment to direct traffic and ensure safety, which are considered engineering or physical controls. Flashing or rotating amber lights serve as warnings or alerts to drivers, which also falls under engineering controls aimed at increasing visibility and awareness rather than changing work practices or policies. Thus, the focus on maximizing safety through proper documentation and policies makes paperwork a key example of an administrative control.