Susan has been charged with murder, and she has pleaded not guilty by reason of insanity. The defense wants an expert to testify on the topic of Susan's mental health status. If the defense were to comply with proposed reforms of expert testimony, how would this expert potentially be chosen?

The expert would be chosen from a panel of judges.

The presiding judge would choose the expert.

The defense attorney would recommend the expert.

The expert will be appointed on the recommendation of the court.