Concept:A vote of no confidence is a parliamentary mechanism by which the legislature removes a government that has lost its support.
Explanation:In a cabinet system, also called a parliamentary system, the executive is chosen from the legislature and remains accountable to it.
When the legislature disapproves of the government's policies or performance, it may pass a vote of no confidence.
Once such a vote is passed, the cabinet must resign, or the prime minister may call for fresh elections.
This power is not a feature of a federal system, which only describes the division of powers between central and regional governments.
Similarly, a de jure government is merely one that is legally recognised, and a monarchical government is headed by a king or queen.
Therefore, the vote of no confidence is the defining feature of the cabinet system.
Answer:B. Cabinet.