The correct answer is:
b. The Judicial branch can declare a law unconstitutional.
Explanation:
One of the checks on the powers of the President is the ability of the Judicial branch to declare a law unconstitutional. This means that if the President enacts a law that goes against the Constitution or exceeds the President's authority, the Judicial branch, specifically the Supreme Court, can review the law and deem it unconstitutional. This power of judicial review helps maintain the balance of power among the branches of government and ensures that the President does not exceed the limits of their authority as outlined in the Constitution.
