Q is mat is an advertiser at a bedding company.He wants to reach shoppers who purchased his brand's mattress so that he can promote bedding and pillows. Which audience would be best for helping him achieve this goal?

Audiences based on purchase are best because they directly target customers who have already bought the brand's mattress. This allows Q to upsell or cross-sell related products like bedding and pillows to a highly relevant and engaged customer base. Audiences based on detail page views would include shoppers who only looked at the mattress but didn't necessarily buy it, making them a less qualified group for cross-selling. In-market audiences are broader and identify shoppers actively looking for products in a general category (like "bedding"), but they don't confirm prior purchase of the specific brand's mattress, making them less precise for this particular goal.