Answer:
The best option is;
A. 9
Step-by-step explanation:
The requirement for the Master Automotive Technician ASE Certification includes the passing of the first eight of the 9 offered tests under the Automobile & Light Truck Certification Test (A1 - A8), with a requirement for re-certification every five years.
The certification award includes the receipt of the ASE Master Technician insignia, wallet identification card and a certificate of qualification. Obtaining the Master Technician certification shows a high level of expertise in the field of automotive service and repair.