Concept:The Public Service Commission is a constitutional body that manages recruitment and discipline in the public service.
Explanation:The Public Service Commission is created by the constitution.
Its main mandate is to handle the recruitment, promotion, and discipline of public servants.
This includes recruiting high-ranking personnel for the civil service.
It ensures that appointments are made on merit and not based on political influence.
Option A is wrong because the commission does not appoint its own head.
Option B is wrong because it does not act only on presidential orders.
Option D is wrong because its role covers the whole public service, not just executive staff salaries.
Answer:C. recruit high ranking personnel for the civil service.