The amount of time required to read a block of data from a disk into memory is composed of seek time, rotational latency, and transfer time. Rotational latency refers to ______

• A. The time it takes for the platter to make a full rotation
• B. The time it takes for the read-write head to move into position over the appropriate track
• C. The time it takes for the platter to rotate the correct sector under the head
• D. None of the mentioned