The following statement about criminal defenders and agents ad litem is correct ().

Answer: BBA, the defender has an independent litigation status, but the agent ad litem is bound by the will of the victim, the private prosecutor, the plaintiff and the defendant in the incidental civil action, and it is correct to say that he is authorized to conduct litigation activities; Item 8: In public prosecution cases, it is correct that the parties concerned and their agents can entrust defenders and litigation agents from the date of transfer for examination and prosecution; In the case of mistake C, the defense lawyer needs to go through the entrustment formalities separately to become the litigation agent of the defendant in the incidental civil action; For mistake D, at the stage of examination and prosecution, the lawyer acts as an agent ad litem, and with the permission of the people's procuratorate, he can consult, extract and copy the litigation documents and technical appraisal materials of this case. So choose B.