According to the passage, Alpers would say that the assumptions underlying the "paradigm" were A. inconsistent with the way some mapmakers prior to 1800 understand their own work B. dependent on a seventeenth-century conception of mapmaking visual engineering C. unconcerned with the difference between the aesthetic and technical questions of mapmaking D. insensitive to divisions among cartographers working in the period after 1800 E. supported by the demonstrable technical superiority of mapmaking made after 1800