Today's Smartphones,you Can Watch the News,shoot Videos,browse the Internet,take Pictures,and

Multiple Choice

today's smartphones,you can watch the news,shoot videos,browse the Internet,take pictures,and listen to music.And more and improved new features are added with each new smartphone introduced from Apple,Samsung,BlackBerry,etc.As a result,consumers may want to replace their existing smartphones with new models or brands.This increase in demand is due in part to changes in ___________,an environmental force.

A) competition
B) social culture
C) technology
D) regulations
E) the economy