The correct answer is: B. Seagate
Seagate Technology plc is an American multinational data storage company headquartered in Dublin, Ireland. It is the world’s largest manufacturer of hard disk drives (HDDs). Seagate’s products are used in enterprise servers, personal computers, and consumer electronics.
IBM is an American multinational technology company headquartered in Armonk, New York, with operations in over 170 countries. The company began in 1911 as the Computing-Tabulating-Recording Company (CTR) and was renamed “International Business Machines” in 1924. IBM is one of the world’s largest employers, with more than 352,600 employees as of 2020.
Microsoft Corporation is an American multinational technology company that produces computer software, consumer electronics, personal computers, and related services. Its best known software products are the Microsoft Windows line of operating systems, the Microsoft Office suite, and the Internet Explorer and Edge web browsers. Its flagship hardware products are the Xbox video game consoles and the Microsoft Surface lineup of touchscreen personal computers. As of 2016, it is the world’s largest software maker by revenue.
3M is an American multinational conglomerate corporation headquartered in Maplewood, Minnesota. The company was founded in 1902 by five businessmen with backgrounds in mining, forestry, and adhesives. 3M produces a wide range of products, including adhesives, abrasives, chemicals, cleaning products, electronics, industrial tapes, medical supplies, optical films, packaging materials, personal care products, roofing materials, safety and security products, specialty materials, and vehicle components.
None of these is the largest manufacturer of Hard Disk Drives.