Reid wants to review how well his campaign is performing toward an awareness goal. Which of these metrics will be most relevant to him? (Select 2)

For an awareness goal, the most relevant metrics indicate how many people saw the ad and how many engaged with it. Impressions served directly measure how many times the ad was displayed, which is a primary indicator of reach and awareness. Click-through rate (CTR) measures the percentage of impressions that resulted in a click, indicating initial engagement and interest in the ad content. While not a direct awareness metric, a higher CTR suggests the ad is effectively capturing attention, which is crucial for building awareness. "Add to cart" is a conversion metric, relevant for sales or consideration goals, not awareness. "Brand halo" is a qualitative concept, not a quantifiable metric directly available in most ad platforms for campaign performance review.