Concept:Computer memory size is expressed in digital storage units, with the byte as the common basic unit.
Explanation:Computer memory holds data and instructions.
Its capacity is measured in bytes and larger multiples such as kilobytes, megabytes, and gigabytes.
A byte is a group of 8 bits and is the standard unit used to state memory size.
A bit and a nibble are smaller units, but they are not the usual measure for memory capacity.
Hertz is a unit of frequency, not memory.
Answer:B. byte