In a 2013 Case About the Constitutionality of Taking a DNA

In a 2013 case about the constitutionality of taking a DNA sample from arrestees, the Supreme Court

A) issued a unanimous decision.
B) held that taking such DNA samples was constitutional.
C) held that taking such DNA samples was acceptable only if the person had been arrested for a violent crime.
D) held that taking such DNA samples was unconstitutional.
E) refused to issue a ruling, instead waiting for similar cases to be decided by lower courts.