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Final answer:The example that represents self-selected sampling is c.) Aaron asks a couple questions whenever he thinks a customer seems interested as they walk by his store, as it allows respondents to decide if they want to participate.Explanation:Select the example that represents self-selected sampling:a.) Aaron walks around the mall asking questions to customers that are shopping in similar clothing stores.b.) Aaron asks the same survey question to the 20 nearest customers in his store.c.) Aaron asks a couple questions whenever he thinks a customer seems interested as they walk by his store.d.) Aaron mails survey questions to all of the customers who signed up to receive offers and updates from his clothing store.The correct answer is c.) Aaron asks a couple questions whenever he thinks a customer seems interested as they walk by his store. This is an example of self-selected sampling, which occurs when respondents themselves decide whether or not to be included in a study or survey. This sampling method can introduce bias, as it does not follow a random or pre-defined selection process and may not represent the entire population accurately....