Which clause is a core protection described in the Fourth Amendment’s protection against unreasonable searches and seizures?

• A. No person shall be held to answer for a capital or infamous crime without indictment.
• B. The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause.
• C. The right of the people to keep and bear Arms shall not be infringed.
• D. No person shall be deprived of life, liberty, or property, without due process of law.

Answer: (B)

The central idea being tested is the protection against unreasonable searches and seizures and the warrant requirement tied to probable cause. The clause states that people have the right to be secure in their persons, houses, papers, and effects, and that warrants may only issue upon probable cause. This directly guards against invasive government searches without justification and sets the standard for when a search or seizure is permissible, making it the best description of the Fourth Amendment’s protection. Other options reflect protections from other parts of the Constitution—indictment by a grand jury, the right to keep and bear arms, and due process—so they do not describe the Fourth Amendment’s key safeguard.