Barron v. baltimore held that is/are bound by the bill of rights. only the states only the federal government both the states and the federal government neither the states nor the federal government

The correct answer here is the federal government.

Barron v. Baltimore is a landmark and the precedent setting case that the Supreme Court heard and made a ruling in 1833. This case set the precedent that the Bill of Rights only applies to the federal government and not the individual state governments. This was an important ruling in establishing the the concept of the US federalism.