What Does Interactive Marketing Refer To

What does interactive marketing refer to?

A) sequential marketing efforts beginning with frontline salespersons and proceeding to detailed instructions by a technical expert
B) marketing efforts through interactive programs where customers can post their queries directly to the management
C) buyer-seller communications in which the customer controls the amount and type of information received from a marketer
D) software-controlled marketing strategies which use central databases to segment the market on various demographic and psychographic factors