Final answer:
Defragmentation is the process of moving clusters as close together as possible to speed up the system.
The Correct option is; A. Defragmentation.
Step-by-step explanation:
The correct answer to the question "which of the following is the process of moving clusters as close together as possible to speed up the system?" is A. Defragmentation.
Defragmentation is the process of rearranging fragmented data on a computer hard disk and storing it in a contiguous manner, which results in faster access times and improved overall system performance.
This process moves clusters as close together as possible to reduce fragmentation and optimize disk usage.