The title of the article suggests that it can determine if a customer is serious. The summarized English article, within 80 words, would be: "This question will gauge a customer’s seriousness. By asking this question, one can evaluate if the customer is genuinely interested or not. Knowing their seriousness helps businesses determine if investing time and resources into the customer is worthwhile. Assessing how the customer responds to this question can provide valuable insights into their level of commitment and credibility."