What typical speeds are associated with hard disk platters measured in rpm?

The correct choice highlights typical speeds for hard disk platters that are commonly found in consumer and enterprise environments. The speeds of 5,400 rpm and 7,200 rpm are standard for many consumer hard drives, providing a balance of performance and cost. In a business or high-performance setting, 10,000 rpm and even 15,000 rpm drives are utilized, particularly for applications requiring faster data access and processing times, such as databases and transaction processing.

The presence of these specific speeds in the correct answer illustrates their relevance in the context of hard disk performance. Drives operating at higher rpm can read and write data more quickly than their lower rpm counterparts, which can significantly impact performance in environments that deal with large volumes of data or require quick retrieval times.

Other options include speeds that do not align as closely with those typically seen in hard drives today. Therefore, option B successfully captures the commonly used speeds in hard disk technology, making it the best representation of typical capabilities associated with HDDs.