What is the point of the ‘Traffic Cost’ metric in the SEMrush Organic Research Positions Report? What does this metric mean?

Traffic cost is an estimation of how much it would cost to bid on organic keywords through Google Ads
Traffic cost is an amount of money made with Google AdSense
Traffic cost is a value entered by a user
Actually, this screenshot is taken from the Paid Search Positions Report
Traffic cost is an estimation of the budget for a Google AdSense campaign

The correct answer is:

Traffic cost is an estimation of how much it would cost to bid on organic keywords through Google Ads.