Which of the following has the power to veto bills?

The power to veto bills is vested in the President of the United States. This authority allows the President to reject legislation passed by Congress, thereby preventing it from becoming law unless Congress can override the veto with a two-thirds majority vote in both the House of Representatives and the Senate. This mechanism serves as a check on legislative power, ensuring that the President has a role in the law-making process.

While the Senate and the House of Representatives are responsible for crafting and voting on legislation, they do not have the authority to veto bills. Similarly, the Supreme Court does not have this power; its role is to interpret laws and assess their constitutionality rather than to participate in the legislative process directly. Thus, option B accurately identifies the entity with the veto power.