Dirk is on trial for the brutal murder of Villas. Dirk's first witness, Wesley, testified that in her opinion Dirk is a peaceful and nonviolent person. The prosecution does not crossexamine Wesley, who is then excused from further attendance. Which one of the following is INADMISSIBLE during the prosecution's rebuttal? 
Testimony by Wesley's former employer that Wesley submitted a series of false expense vouchers two years ago. Testimony by a police officer that Dirk has a long-standing reputation in the community as having a violent temper. Testimony by a neighbor that Wesley has a long-standing reputation in the community as an untruthful person. Testimony by Dirk's former cell mate that he overheard Wesley offer to provide favorable testimony if Dirk would pay her $5,000. 