In _______, the Supreme Court ruled that the "execution of the mentally retarded was cruel and unusual punishment and thus violated the 8th Amendment." Question 5 options: Atkins v. Virginia Penry v. Lynaugh Stanford v. Kentucky Roper v. SimmonsIn _______, the Supreme Court ruled that the "execution of the mentally retarded was cruel and unusual punishment and thus violated the 8th Amendment." Question 5 options: Atkins v. Virginia Penry v. Lynaugh Stanford v. Kentucky Roper v. Simmons