The correct answer is: D. Terabyte
A terabyte (TB) is a unit of information or computer storage equal to one trillion (1,000,000,000,000) bytes. It is commonly used to measure the size of hard drives, solid-state drives, and other storage devices.
A kilobyte (KB) is a unit of information or computer storage equal to one thousand (1,000) bytes. It is commonly used to measure the size of files, programs, and other data.
A megabyte (MB) is a unit of information or computer storage equal to one million (1,000,000) bytes. It is commonly used to measure the size of large files, programs, and other data.
A gigabyte (GB) is a unit of information or computer storage equal to one billion (1,000,000,000) bytes. It is commonly used to measure the size of very large files, programs, and other data.
In conclusion, a terabyte represents approximately one billion memory locations.