Step-by-step explanation:
Of the options you provided, the most likely to be considered a violation of the Eighth Amendment is "torture." The Eighth Amendment of the United States Constitution prohibits "cruel and unusual punishments." Torture is widely recognized as a form of cruel and unusual punishment, and subjecting individuals to torture would likely be considered a violation of their constitutional rights.
Gun-control laws, high taxes, and discrimination are not directly related to the Eighth Amendment. Gun-control laws fall under the Second Amendment, which addresses the right to bear arms. High taxes and discrimination are not specifically addressed by any single amendment, although they may be subject to scrutiny under other provisions of the Constitution, such as the Equal Protection Clause of the Fourteenth Amendment.