Which of the Following Admissions by a Party Opponent Would

Which of the following admissions by a party opponent would not be admissible?

A) A defendant in a murder trial had told a witness that the victim was living on borrowed time.
B) An employee of the defendant told the witness that the defendant drove home drunk every night.
C) A former co-defendant in a robbery trial stated that the defendant needed money to pay gambling debts.
D) A victim testifies that the defendant had offered the victim $1,000 to settle the case out of court.