A. Instruments, equipment, apparatus, materials or other items, including required software, which are used directly or indirectly on the human body;
B. Instruments, equipment, apparatus, materials or other items, including required software, which act directly on the human body;
C, equipment, appliances, materials or other items, except intangible software;
D. instruments, equipment, appliances and materials used directly or indirectly on the human body, including the required software;
Correct Answer: A