I need help w part A

9.1.31 Question Help In a survey conducted by a reputable marketing agency, 258 of 1000 adults 19 years of age or older confessed to bringing and using their cell phone every trip to the bathroom (confessions included texting and answering phone calls). Complete parts (a) through (f) below. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) What is the sample in this study? What is the population of interest? Determine the sample in this study. Select the correct choice below and, if necessary, fill in the answer box within your choice. O A. The sample is the adults 19 years of age or older. (Type a whole number.) O B. The sample is all adults with a cell phone. | Scr on O C. The sample is all adults. 021-0 O D. The sample is all adults 19 years of age or older. Click to select and enter your answer(s) and then click Check Answer. ? Scree 021-04