Based on this article, write a short piece on how smart mobile devices can be used in retail, being sure to also describe the different communications technologies involved. Your answer should describe two advantages to the customer and two advantages to the retail outlet of the use of mobile devices, as described in the article. The maximum word limit for Question 3(a) is 120 words. https://www.einfochips.com/blog/how-smart-devices-and-iot-in-retail-are-reshaping-the-retail-industry/