Recently, some advertising campaigns have begun using staged public dance routines to advertise their products in busy areas. Unlike radio and TV ads, this approach is seen as a new, exciting way to present a product. Which of the following correctly combines these two sentences into a complex sentence?
A. Recently, some advertising campaigns have begun using staged public dance routines to advertise their products in busy areas, but, unlike radio and TV ads, this approach is seen as a new, exciting way to present a product.
B. Recently, some advertising campaigns have begun using staged public dance routines to advertise their products in busy areas; and, unlike radio and TV ads, this approach is seen as a new, exciting way to present a product.
C. Recently, some advertising campaigns have begun using staged public dance routines to advertise their products in busy areas; unlike radio and TV ads, this approach is seen as a new, exciting way to present a product.
D. Recently, some advertising campaigns have begun using staged public dance routines to advertise their products in busy areas because, unlike radio and TV ads, this approach is seen as a new, exciting way to present a product.