¿Qué métrica publicitaria muestran la cantidad que has gastado por un clic?

The correct answer is Cost-Per-Click (CPC). CPC directly measures the amount you pay each time a customer clicks on your advertisement. This metric is crucial for understanding the immediate cost efficiency of your ad campaigns. Return on Ad Spend (ROAS) is incorrect because it measures the revenue generated for every dollar spent on advertising, not the cost per click. Click-Through Rate (CTR) is incorrect because it represents the percentage of people who click on your ad after seeing it, indicating ad relevance and appeal, but not the cost per click.