Which unit measures data storage?

The correct choice for measuring data storage is represented in megabytes, commonly abbreviated as MB. This unit quantifies the amount of data that can be stored on various media, such as hard drives, SSDs, and USB flash drives. A single megabyte is equivalent to 1,024 kilobytes, making it a more substantial measure for storage capacity than smaller units like kilobytes.

In contrast, the other choices represent different concepts. Megabits per second (Mb/s) measures data transfer speeds rather than storage capacity. Gigabits (Gb) is also a measure of data, but it typically refers to data in transit or bandwidth, not the actual storage capacity. Hertz (Hz) measures frequency and is unrelated to data storage altogether. These distinctions underscore why MB is the appropriate unit for describing data storage.