To Perform a Statistical Study on Whether or Not Local

To perform a statistical study on whether or not local business have a Facebook webpage, your Statistics class uses a local phonebook to contact 200 randomly picked business. You ask each
Business if they have a Facebook page that you could visit. Your class finds that 45% of the sampled Businesses have Facebook pages. In this study, the sampling frame is what?

A) The list of business names in the local phonebook.
B) The 200 randomly picked businesses.
C) The 45% of businesses that had a Facebook webpage.
D) The students and teacher in the Statistics class.
E) None of the above.