Final answer:
RAID improves disk writing performance by spreading the workload across multiple drives, which allows for faster data processing due to simultaneous writing.
Step-by-step explanation:
The correct answer to the question is a) RAID, which stands for Redundant Array of Independent Disks. RAID is a data storage virtualization technology that combines multiple physical disk drive components into one or more logical units for the purposes of data redundancy, performance improvement, or both. Specifically, RAID configurations like RAID 0 (striping) can improve disk writing performance by writing data across two or more drives simultaneously, which allows for faster data processing since the workload is distributed across the drives.