Question 1 of 20An instructor teaching an introductory course in marketing has 300students enrolled in her class. Some students in the class requestthe instructor to cancel her class on Wednesday beforeThanksgiving. She agrees to do so if 70 percent of the studentsagreed with the proposal to cancel the class. Instead of askingevery student to participate in the poll she asks students towrite their names on index cards and put them in a collectionbasket. She then asks a student to pull out 30 cards from thebasket without looking at the basket or the cards. The instructoris practicing what kind of sampling technique?A. Systematic random sampleB. Simple random sampleC. Stratified random sampleD. Convenience sample