The correct answer is option 1 - Speaker. The Speaker is the presiding officer of the Lok Sabha, which is the lower house of the Indian Parliament. The Speaker is responsible for maintaining discipline and decorum in the house, deciding on points of order, and regulating the proceedings of the Lok Sabha. The Speaker is elected by the members of the Lok Sabha and holds a neutral position, not representing any political party. The Speaker is in charge of conducting the debates, ensuring the participation of all members, and making sure that the rules and procedures of the Lok Sabha are followed. Therefore, the Speaker plays a crucial role in the functioning of the Lok Sabha.