What is the purpose of the Bill of Rights?

The Bill of Rights serves to protect individual liberties by outlining specific rights and freedoms that are secured against infringement by the government. Ratified in 1791 as the first ten amendments to the U.S. Constitution, it was a response to concerns that the original Constitution did not sufficiently safeguard the personal freedoms and rights of citizens. These amendments ensure essential protections, such as freedom of speech, the right to bear arms, and protection against unreasonable searches and seizures, thereby limiting the power of the federal government and affirming the fundamental rights of individuals. This foundational aspect of the Bill of Rights is essential in fostering a democratic society where personal freedoms are upheld.

The other choices do not accurately reflect the main aim of the Bill of Rights. While the structure of government is outlined in the Constitution, the judicial system's establishment is covered in another part of the Constitution, and the regulation of commerce pertains to specific governing powers outlined elsewhere rather than individual liberties. Thus, the Bill of Rights is distinct in its primary focus on protecting the rights of the individual.