According to the Supreme Court Opinion in U

According to the Supreme Court opinion in U.S. v. Salerno, involving pre-trial detention, of defendants due to the threat they posed to public safety:
I. preventive detention is not punishment.
II. pretrial detention can only be imposed for the purpose of securing the defendant's appearance at trial.
III. pretrial detention can be imposed to secure the defendant's appearance at trial and if the court finds that the defendant poses a risk to the safety of the community.
IV. pretrial detention violates the Eight Amendment.

A) I, II, III, IV
B) I, II, III
C) I, III
D) IV