Lindros is using sponsored brands to help drive awareness for his brand and products. Which metric would best measure awareness in his sponsored brand campaign?

Impressions are the best metric to measure awareness because they represent the number of times an ad was displayed, regardless of whether it was clicked. A higher number of impressions indicates that more potential customers have seen the brand or product, directly contributing to brand awareness. Return on Ad Spend (ROAS) and sales are financial metrics that measure profitability and revenue, respectively, not awareness. Click-through rate (CTR) measures engagement (clicks per impression), which is important but doesn't directly quantify the sheer visibility or reach that impressions do for awareness goals.