Answer:
Government Corporations - Government Companies, conduct government commercial activities. Executive Agencies - Government department bodies, execute government plans. Regulatory Agencies - Autonomous monitoring bodies
Step-by-step explanation:
Government Corporations are government owned commercial organisation (company). These are recognised by state, given the responsibility to carry out commercial activities (trade) of market goods among public, on behalf of government. Eg : Alaska Northern Railroad .
Regulatory Agencies are autonomous public authorities, government agency. They are held responsible for monitoring, supervising a certain particular activity, for safety standards & public interest protection. Eg : US Food & Drug Administration
Executive Agencies are under government departments, given managerial & budgetary allocation to carry executional activities. They have responsibility of managing their entire stipulated department by legalities, investigations etc. Eg : Federal Executive Department