Select the example that represents self-selected sampling. 4 a.) Aaron asks the same survey question to the 20 nearest customers in his store. b.) Aaron mails survey questions to all of the customers who O signed up to receive offers and updates from his clothing store. C.) Aaron walks around the mall asking questions to customers that are shopping in similar clothing stores. O d.) Aaron asks a couple questions whenever he thinks a customer seems interested as they walk by his store. SUBMIT MY