Final answer:
Duran Duran was one of the first British pop groups to appear on MTV. The Beatles and The Rolling Stones were significant during the rock and roll era, but MTV launched after The Beatles had disbanded.
Step-by-step explanation:
The British pop group that was one of the first to appear on MTV is C. Duran Duran. While both The Beatles and The Rolling Stones were monumental in the history of rock and roll and the British Invasion, it was Duran Duran who emerged in the music video era and featured prominently on MTV in its early days. The Beatles, iconic as they were, had disbanded before MTV was launched in 1981. Hence, option C is the correct answer to the question.