Eastern Visayas State University has celebrated its centennial years two years ago. Several activities were conducted and one of which is the alumni homecoming. There were atleast 70% of the alumni attended the said gathering. After a day full of activities a questionnaire were about to be distributed in order to know whether they enjoyed the activities or not. If you are task to distribute the questionnaire what will you do? Decide on the optimal sampling elements to be considered. Recommend a sampling design. Give justification.