The correct answer is A. IBM.
IBM, or International Business Machines, is a multinational technology company that specializes in hardware, software, and infrastructure. The company was founded in 1911 and is headquartered in Armonk, New York. IBM is one of the largest employers in the world, with over 352,600 employees in over 170 countries.
The company’s nickname, “Big Blue,” is a reference to its corporate color and its size and stature in the technology industry. IBM has been a major player in the development of many of the technologies that we use today, including the mainframe computer, the personal computer, and the internet.
The other options are incorrect. Microsoft is a multinational technology company that develops, manufactures, licenses, supports, and sells computer software, consumer electronics, personal computers, and related services. Apple is an American multinational technology company that specializes in consumer electronics, software, and online services. Micromax is an Indian multinational consumer electronics company that specializes in smartphones, feature phones, tablets, and televisions.