Match the following : A- Maintenance control: B-Maintenance measures: C-Maintenance personnel : 1-Cost of planning and scheduling hardware preventive main- tenance, and software maintenance and upgrades, managing the hardware and software baselines, and providing response for hardware corrective maintenance. 2- Measures that address how easily a system can be repaired or changed. 3-Number of personnel needed to maintain all aspects of a computer system, including the support personnel and facilities needed to support that activity.