Which of the Following Is Correct with Regard to a Trademark

Which of the following is correct with regard to a trademark infringement case?

A) The plaintiff need prove only that its mark was used in an unauthorized manner.
B) The plaintiff must prove actual damages to prevail in the suit.
C) The plaintiff must prove that the unauthorized use is likely to cause confusion,mistake or deceive the public about the origin of the goods.
D) Treble damages are not available.