What is the name of the numeric value used to identify a memory cell?

What is the name of the numeric value used to identify a memory cell?

• Boolean operation
• Hexadecimal notation
• Bit
• Address

EXPLANATION

A digital computer's memory, more specifically main memory, consists of many memory locations, each having a physical address, a code, which the CPU (or other device) can use to access it. Generally only system software, i.e. the BIOS, operating systems, and some specialized utility programs (e.g., memory testers),
address physical memory using machine code operands or processor registers, instructing the CPU to direct a hardware device, called the memory controller, to use the memory bus or system bus, or separate control, address and data busses, to execute the program's commands. The memory controllers' bus consists of a number of parallel lines, each represented by a binary digit (bit). The width of the bus, and thus the number of addressable storage units, and the number of bits in each unit, varies among computers.

SOURCE

https://en.wikipedia.org/wiki/Memory_address