What Do the Following Business Sectors Have in Common: Investment,government

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 immune from liability under the Competition Act.
B) These are all potential matters of both federal and provincial constitutional jurisdiction for the regulation of business.
C) They are all areas in which Canada has a competitive advantage.
D) They are all areas of exclusive federal jurisdiction.
E) They are all areas of provincial jurisdiction.