Take a look at the sample search term report shown below and analyze the different performance metrics. Which is the best performing product/keyword for average cost per click (aCPC)?

The correct answer is "Hiking shoes." Hiking shoes are the best performing product/keyword for average cost per click (aCPC) because they likely have the lowest aCPC compared to the other keywords, indicating that the cost to acquire a click for this keyword is more efficient. A lower aCPC means the advertiser is spending less on each click, which is often a sign of better campaign optimization and cost-efficiency. By achieving a good balance of visibility and engagement for this keyword at a lower cost, the campaign is able to generate more clicks for the same ad spend, making it a more cost-effective choice than keywords like "Running shoes" or "Sneakers," which may have higher aCPCs.