A researcher is interested in finding out why students in a University of professional Studies, Accra have decided to study Public Relations and what their experiences have been. He will use a self-report questionnaire. His accessible population is undergraduate students of Public Relations. a. Suggest three (3) relevant closed ended questions he could pose to respondents (2 marks for each). b. Provide 3-point Likert responses suitable for each question that respondents can choose from (2marks for each) c. Write down two (2) possible objectives for the study (2 marks for each) d. With reference to a source, define a sampling frame. Make sure to include an in-text citation/reference for the definition you provide. (4 marks)