Answer: c. Admissible to prove Marcia's motive for committing the crime
Step-by-step explanation:
Judging crimes are complex task to do at courts, especially when it's a critical case and the party who committed it has an evidence for their action.
Marcia Brady has been charged to court for murder, but before her action, she presents to the court why it ended up so, The court should rule that the letter admissible to prove Marcia's motive for committing the crime.