The correct answer is B. Atari 5200. The Atari 5200 was marketed as both a computer and a game machine. It was released in 1982 as a follow-up to the popular Atari 2600 game console. The Atari 5200 featured advanced graphics and sound capabilities, making it suitable for playing games as well as performing basic computer functions. While it did not achieve the same level of success as the Atari 2600, it was still considered an innovative and versatile machine for its time.
