With Reference to the Conduct of Government Business in the Parliament

With reference to the conduct of government business in the Parliament of India, the term 'closure' refers to

A) suspension of debate at the termination of a day's sitting of the Parliament
B) a rule of legislative procedure under which further debate on a motion can be halted
C) the termination of a parliamentary session
D) refusal on the part of the government to have the opposition look at important document.