Who signs bills to become laws?

The correct answer is that the President signs bills to become laws. In the United States government, the process of turning a proposed bill into law requires the President's approval. Once both the House of Representatives and the Senate pass a bill, it is sent to the President, who can either sign it into law or veto it. This power to approve or reject legislation is a critical responsibility of the President, reflecting the system of checks and balances that is fundamental to U.S. governance.

The Speaker of the House primarily focuses on legislative leadership and facilitating House proceedings, while the Senate Majority Leader manages the Senate's proceedings and agenda. The Attorney General is the head of the Department of Justice and does not have a role in signing legislation. Therefore, the President is the only official among the options provided who has the authority to sign bills into law, making this answer the most accurate in the context of U.S. government operations.