challenge: What are some of the key areas that the Maritime and Port Authority Brunei Darussalam (MPABD) regulates and manages as a Port Authority?
  
  A. Agricultural production and fisheries management
  B. Tourism and recreation activities in Brunei waters
  C. Offshore oil and gas exploration and production
  D. Vessel traffic, navigational safety and security, operational efficiency, and environmental protection
  Answer: 