The project manager on a new light rail project using P3 delivery receives a Potential Change Order (PCO) requesting a significant amount of money and schedule extension to the Revenue Services Availability (RSA). In order to evaluate the PCO against the provisions of the P3 Agreement with respect to the time extension request, the project manager requests that the concessionaire fully substantiate their PCO by submitting a Time Impact Analysis (TIA) which would state why the O A. concessionaire is entitled to a change in the RSA date and what can be done to mitigate the schedule impacts. O B. concessionaire's critical path is impacted specific to resources, labor, equipment, and what resequencing was implemented to mitigate the delay. C. concessionaire should stop work until this PCO is resolved and agreed to with the owner. D. concessionaire's schedule updates reflect the RSA date change that has been requested, but not approved