Concept: In a parliamentary system, a vote of no confidence is a control mechanism used by the legislature to remove the executive.Explanation: A vote of no confidence is a formal parliamentary motion.When the legislature passes it against the executive, it shows that the executive has lost the support of the majority in parliament.Consequently, the Prime Minister and the cabinet are required to resign as a body.This is a fundamental feature of the parliamentary system of government.Answer: B. Executive is required to resign.