Final answer:
Juvenile Detention is the punishment that does not violate recent Supreme Court rulings regarding severe punishment for juveniles, while life imprisonment without parole and capital punishment do. So, the correct answer is option 3.
Step-by-step explanation:
The punishment that does not violate recent Supreme Court rulings regarding severe punishment for juveniles is Option 3: Juvenile Detention. According to the Supreme Court decisions Miller v. Alabama (2012) and Graham v. Florida (2010), imposing a sentence of life imprisonment without the possibility of parole on juvenile offenders, either as a mandatory sentence or for non-homicide offenses, is unacceptable.
Additionally, the Court has also ruled that the death penalty, or capital punishment, may not be applied to those who were under 18 when they committed the crime, effectively excluding Option 2. Therefore, among the given options, only juvenile detention and community service remain as permissible forms of punishment for juveniles.