There Were Four Steps in the GPS Revolution

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

A) GPS technology became a necessity rather than a luxury
B) profits exceeded costs resulting in GPS units became cash cows
C) new technologies were developed and became readily available
D) demand exceeded production capabilities so multiple new production facilities were built
E) industry backed a campaign to increase the number of students going into the applied sciences