1. In a survey conducted by a reputable marketing agency, 234 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).

(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.

A. The sample is all adults.

B. The sample is the _____ adults 19 years of age or older.

C. The sample is all adults 19 years of age or older.

D. The sample is all adults with a cell phone.