The Pew Research Center surveyed a nationally representative group of 1,002 American adults in 2013. Of these adults, 21% have had an email or social networking account compromised. Identify the population about which the Pew Research Center can make inferences from the survey results and the sample from that population. The population is all American adults in 2013. The sample is the 21% of American adults that have had an email or social networking account compromised. The population is the 1,002 American adults surveyed. The sample is all American adults in 2013. The population is all American adults in 2013. The sample is the 1,002 American adults surveyed