If the Prime Minister of India belonged to the Upper House of Parliament

The correct answer is A because a No Confidence Motion can only be introduced and voted upon in the Lok Sabha or the Lower House. According to parliamentary rules, a member of Parliament can only vote in the House to which they belong. Therefore, if the Prime Minister is a member of the Rajya Sabha or the Upper House, they can participate in the proceedings of the Lok Sabha but do not have the right to vote there. Consequently, they would be unable to cast a vote in their own favor during a No Confidence Motion. Regarding the other options, a Prime Minister from the Upper House can still speak on the Budget in the Lower House, can make statements in both Houses, and is not required to move to the Lower House as long as they remain a member of either House of Parliament.