In the context of computers, WORM is an acronym of:

The correct answer is A, Write Once, Read Many. WORM describes a storage medium on which data can be written a single time and after that only read, never altered or erased. A CD-R or a DVD-R is the everyday example, because once the disc has been burnt the marks made in its dye layer are permanent. Since the record cannot be changed later, WORM media are used for archives, bank and hospital records, court evidence and audit trails, where proof that nothing was tampered with matters more than the freedom to edit. Modern systems offer the same guarantee in software on hard disks and cloud storage. B is wrong because Word On RAM Memory is not a storage term at all. C is wrong because it mixes optical recognition with malware, and the worm that is malware is an ordinary word, not an acronym. D is wrong because WORM has nothing to do with wireless working. Exam tip: WORM means Write Once Read Many, as on CD-R and DVD-R, and is used for tamper-proof archives.