You want to improve the relevance of an ad with a particular set of keywords. The goal is to increase the Ad Rank of the ad so that it gets more exposure. What action should improve the ad relevance?

Adding more negative keywords improves ad relevance by preventing your ad from showing for irrelevant searches. This ensures your ad is displayed only to users genuinely interested in your product or service, leading to higher click-through rates and better Ad Rank. Focusing on a wider audience might decrease relevance if not targeted properly. Improving landing page navigation is crucial for user experience after the click, but doesn't directly impact ad relevance before the click. Highlighting product uniqueness is a good ad copy strategy, but negative keywords directly refine the audience your ad reaches.