The correct options are
A The organisation is hierarchical.
B Bureaucrats are expected to maintain political neutrality.
D Bureaucrats are the point of contact between the people and the government.
1. The bureaucracy is a hierarchical organisation.
2. Bureaucrats cannot let their political affiliations affect the conduct of their duties.
3. The bureaucracy is permanent, and does not change with the ruling government.
4. All the services and policies of the government reach the common people through the bureaucracy.