What is mentioned about ongoing care of computer equipment?

A. It must be purchased for a minimum of one year.B. It is recommended for older computer systems.C. It is performed by external consultants.D. It is not available to new customers.

Đáp án đúng là: A

Giải thích

customized software production and regular maintenance of on-site hardware (requires one-year contract). Đáp án là A