Hector Rosado, editor of the Palm Coast Evening Times, files a Freedom of Information Act (FOIA) request for Environmental Protection Agency (EPA) documents. More specifically, Hector is interested in any and all documents related to the implementation of agency rules and regulations tied to the federal Safe Open Waterways Initiative (SOWI) passed by Congress and signed into law by the president. Which of the following items would be exempted from disclosure under Hector's FOIA request?

A. Transcripts of public hearings on proposed SOWI rules

B. Classified report on potential threats to waterways posed by terrorist groups

C. General internal EPA procedures on proposing and adopting regulations

D. Results of water toxicity tests conducted on federal waterways to be covered by new SOWI rules