Which of these are three efficient ways that marketers can apply recommendations that affect optimization score?

1. Prioritize Recommendations: Marketers should prioritize recommendations based on their potential impact on the optimization score. This means focusing on actions that could significantly improve performance.

2. Regular Review: Optimization scores and recommendations should be reviewed regularly. Google Ads, for example, updates these scores in real time based on the most recent data. Regular reviews allow marketers to stay updated with the latest recommendations and make necessary changes promptly.

3. Implement Recommendations: Simply reviewing recommendations is not enough. Marketers need to implement these recommendations to see improvements in their optimization score. This could involve adjusting bids, expanding keyword lists, or making changes to ad text.

Remember, the optimization score is a helpful tool, but it should not replace a marketer's expertise and understanding of their unique business needs and goals.