There Were Four Steps in the GPS Revolution

There were four steps in the GPS revolution.First new technologies were developed and became readily available; second; regulatory changes were made allowing cell phone frequencies and former military technologies available for commercial use; third __________, and services; and finally consumers changed becoming "geo-enthusiasts."

A) demand exceeded production capabilities
B) competitive forces such as Garmin and TomTom, developed new products
C) profits exceeded costs resulting in GPS units became cash cows
D) GPS technology became a necessity rather than a luxury
E) production was shipped overseas greatly reducing production costs