A retailer is looking to grow their online sales this year. To do so, they plan to experiment with a few campaign optimizations to help them reach more customers. What’s the value of this retailer using campaign experiments to test campaign optimizations?

Campaign experiments randomly chooses how much Search traffic will be diverted to an experiment, guaranteeing statistically significant results.
Campaign experiments can help marketers understand whether proposed changes help reach their desired marketing objective.
Campaign experiments are used to test Google Ads campaigns against traditional media campaigns, like TV or print ads.
Campaign experiments allow marketers to measure the impact of campaign changes and revert back to original campaigns, if needed.

The correct answer is:

Campaign experiments can help marketers understand whether proposed changes help reach their desired marketing objective.