Question: If a witness is unable to answer a question because of a failure in memory: Question options: 1) The attorney can try to refresh the witness's recollection ether before trial or while the witness is testifying on the witness stand. 2) The attorney can try to refresh the witness's recollection only before the trial commences. 3) The attorney can try to refresh the witness's recollection only before the witness takes the witness stand during the trial. 4) The attorney can try to refresh the witness's' recollection only after the case is over and the jury has rendered its decision.