PPSC Solved Past Papers MCQs, ASSISTANT PPSC (BPS - 16) 2016, General Knowledge MCQsAmazon’ is a best example of _________ site.A. E-commerce B. Social Networking C. Slogging D. Entertainment Complete the number series: 11, 13, 17, 19, 23, 29, 31, 37, 41 ,________?India is making efforts to join the NSG. What does NSG stand for?