What Is the Usual Effect of a Defendant's Nolo Contendere

What is the usual effect of a defendant's nolo contendere plea in a government antitrust case?

A) a penalty imposed on the defendant without an admission of guilt
B) a penalty imposed on the defendant without an admission of guilt, and automatic liability to any private plaintiffs in related cases
C) a requirement that a defendant cease business in the line of business or market where the violation occurred
D) an admission of guilt, accompanied by a lighter penalty than if a verdict of guilty was issued following a trial
E) no penalty in the current case, but an increased penalty for any similar future violation