Answer: C. the CPC bidder because the 1% click through rate would produce $5.00 over 1,000 impressions
Explanation:
From the question, an advertiser bids $4.75 cost per thousand impressions (CPM) while another advertiser bids $0.50 per CPC with a click rate of 1%. Over 1000 impressions, the second advertiser bids will produce:
= $0.50 × 1% × 1000
= $0.50 × 0.01 × 1000
= $5
Based on the analysis above, the CPC bidder will be awarded the advertisement space because the 1% click through rate would give $5.00 over 1,000 impressions.