Question

Using smartphones, one can watch the news, shoot videos, browse the Internet, take pictures, and listen to music. Improved features are added with each smartphone introduced by Apple, Samsung, BlackBerry, and the like. As a result, existing customers often want to replace their existing smartphones with new models or brands every two years when their contracts expire. This increase in demand is due mostly to changes in __________, an environmental force.
A. competition
B. social culture
C. technology
D. regulations
E. the economy

Answer

This answer is hidden. It contains 241 characters.