https://webnsolution.com/how-are-incrementality-experiments-different-from-a-b-experiments/

They’re a way to determine the impact of a specific variable on control and treatment groups.
They evaluate a customer’s long-term marketing value to provide a more accurate view of performance.
They’re an analysis that shows the impact of marketing on a brand’s sales.
They use your conversion data to calculate the contribution of each interaction across the conversion path.

The correct answer is:

Sources: Google Ads Measurement Certification Assessment Course

To see all the questions and correct answers of the Google Ads Measurement Certification Assessment Exam, Click Here – Google Ads Measurement Certification Assessment Answers