After investing $2000 into a Google Display ads campaign, a company sees 80 click-through conversions and 20 view-through conversions. Using view-through conversions to get a sense of its full value, what's the average CPA of the company's Display campaign?

The provided answer key is inconsistent with Google Ads methodology. Average CPA is calculated by dividing total cost by total conversions, and view-through conversions are part of the fuller value picture for Display when they are included in the conversion count. Here, the total conversions are 80 click-through conversions plus 20 view-through conversions, which equals 100. Dividing $2,000 by 100 gives an average CPA of $20, so the official calculation supports A, not D.