What Do the Following Business Sectors Have in Common: Investment

What do the following business sectors have in common: investment, government procurement, labour mobility, consumer- related measures and standards, agricultural and food products, alcoholic beverages, natural resource processing, energy, communications, transportation, and environmental protection?

A) They are all areas of exclusive federal jurisdiction.
B) They are immune from liability under the Competition Act.
C) They are governed by the Agreement on Internal Trade.
D) They are all areas in which Canada has a competitive advantage.
E) None of the above.