Concept:The institution under the executive that handles policy formulation and implementation is the civil service.
Explanation:The executive arm of government is responsible for running the country.
It relies on permanent professional staff known as the civil service.
The civil service helps formulate policies and puts them into action.
It manages the daily operations of government departments.
Public service is a broader term, and public corporations are commercial state-owned bodies.
Judicial service is part of the judiciary, not the executive.
Hence, the correct answer is civil service.
Answer:C. civil service