Marcia Brady is on trial for killing her stepfather Michael. In its case-in-chief, the prosecutor introduces a properly authenticated letter from Jan, Marcia's sister. The letter was found in Marcia's possession when she was arrested, and it is dated the day before the murder. In the letter, Jan wrote that Michael had sexually assaulted her numerous times over the past few weeks. The defense objects to this document as hearsay and inadmissible character evidence. The court should rule that the letter is: a. Admissible for any purpose. b. Admissible to prove Marcia's motive for committing the crime. c. Admissible to prove that Michael actually did sexually assault Jan. d. Inadmissible for any purpose.