What does MB stand for when referring to storage capacity?

MB stands for Megabyte when referring to storage capacity. A megabyte is a unit of digital information that is commonly used to measure data size, particularly in the context of computer storage and memory. One megabyte is equivalent to 1,024 kilobytes, or approximately one million bytes. This unit of measurement is a standard metric used to quantify the capacity of various storage devices, such as hard drives, USB flash drives, and memory cards, allowing users to understand how much data can be stored.

The other options do not accurately represent a standard measurement in data storage. "Manual Byte" and "Media Bit" are not recognized terms in the context of digital storage, and "Microbyte" is not a standard unit of measurement. Therefore, Megabyte is the correct and widely accepted term for storage capacity in the digital realm.