The Chinese-Made, Sub-$100 Smartphone is Africa's Fastest-Growing Handset More than half of all smartphones sold in Africa cost less than $100 and are made in China. As phone networks are upgraded across Africa, social media rises in popularity, and mobile Internet access becomes more affordable, the demand for smartphones increases. Source: az.com, March 19, 2020 Explain the effects of the increase in demand in Africa for smartphones on the market for smartphones and on an individual smartphone producer in the short run. In the short run, the increase in the African demand for smartphones O A. raises the price of a smartphone and increases the economic profit of an individual smartphone producer B. lowers the price of a smartphone because technology is always advancing and the economic profit of individual smartphone producers remains unchanged O C. raises the price of a smartphone but because of entry into the market the economic profit of an individual smartphone producer does not change O D. does not change the price of a smartphone because supply increases as new producers enter the market and individual smartphone producers make zero economic profit