A) U.S. v. Lopez INCORRECT This 1995 case addressed the Commerce Clause and federalism, ruling that the Gun-Free School Zones Act exceeded Congress's power under the Commerce Clause. It did not focus on the Second Amendment right to bear arms, but rather on the limits of federal authority over intrastate activities. The case is significant for its reaffirmation of the principle of enumerated powers, but it does not address the core issues of gun ownership for self-defense that are central to the data in question.
B) Engel v. Vitale INCORRECT This 1962 case dealt with the Establishment Clause of the First Amendment, ruling that state-sponsored prayer in public schools was unconstitutional. It has no bearing on the Second Amendment or gun rights. The case is a landmark in the separation of church and state, but it is unrelated to the issues of firearm regulation or the right to bear arms.
C) District of Columbia v. Heller CORRECT This 2008 case is the definitive Supreme Court decision on the Second Amendment, holding that it protects an individual's right to possess a firearm for self-defense within the home. The Court struck down Washington, D.C.'s handgun ban, which was one of the strictest in the nation, and established that the right is not unlimited, allowing for reasonable regulations. This case directly addresses the issues of gun ownership and self-defense that are likely reflected in the data, making it the correct answer.
D) Citizens United v. Federal Election Commission INCORRECT This 2010 case concerned campaign finance and the First Amendment, ruling that corporations and unions could spend unlimited funds on independent political advertisements. It did not involve the Second Amendment or gun rights. The case is significant for its impact on political speech and campaign finance, but it is unrelated to the issues of firearm regulation or self-defense.
