Concept:Collective responsibility is the principle where all ministers publicly support and answer for government decisions.
Explanation:This principle is a key feature of the cabinet or parliamentary system of government.
In a cabinet system, every minister shares responsibility for the policies and actions of the government as a whole.
However, in a non-centralised system, government power is widely dispersed among different groups or regions.
There is no single central cabinet or unified executive to hold collective responsibility.
Therefore, a non-centralised system does not practice collective responsibility.
Answer:A. Non-centralised system