Answer: C. EPA
Explanation: An EIS is file by any Federal agency by submitting the completed EIS including appendices to EPA through the e-NEPA electronic filing system.
The use of an e-NEPA for electronic filing of EIS's does not change any of the requirements for distribution of EIS's to other federal agencies for review these also includes all EPA Regional Offices or the general public.
EPA regional offices generally require at least one paper copy of an EIS submitted electronically.