To "prepare" the disk drive mechanism...
To transfer data to or from a block of Secondary Memory, the R/W head:
- Reaches the right track.
- Reaches the right sector by disk rotation.
- Transfers the data.
The corresponding times taken do perform the above actions are:
- Seek time
- Rotational latency
- Transmission time
To "prepare" the disk drive mechanism would mean to do the first two steps.
Hence, Option C