The correct answer is C. 1987.
The Apple Macintosh II was a personal computer introduced by Apple Computer on January 15, 1987. It was the first Macintosh model to use the Motorola 68020 microprocessor, and it featured a number of improvements over the original Macintosh, including a higher-resolution display, more memory, and a faster processor. The Macintosh II was a critical and commercial success, and it helped to establish the Macintosh platform as a major player in the personal computer market.
Option A is incorrect because the Apple II was introduced in 1977.
Option B is incorrect because the Apple III was introduced in 1980.
Option D is incorrect because the Macintosh was introduced in 1984.
Option E is incorrect because the Macintosh II was introduced in 1987.