Jessica works for ABC Shoes. At ABC, Jessica is responsible for establishing structure, strategic goals, and guiding her employees. She is also responsible for making long-range plans and establishing major policies. She often works long hours and is frequently faced with making difficult choices in order to better ABC. Jessica is a .

When cell phones were first entering the market, they were relatively large and reception was undependable. all cell phones were essentially the same. but as the technology developed, many competitors entered, introducing features unique to their phones. today, cell phones are only a small fraction of the size and weight of their predecessors. consumers can buy cell phones with color screens, cameras, internet access, daily planners, or voice activation (and any combination of these features). the history of the cell phone demonstrates what marketing trend?