A digital marketing manager has chosen to upgrade keywords to broad match. Which of these behaviors should they incorporate into their routine optimization cadence in order to guide machine learning?

• Add more phrase and exact match keywords to improve reach.
• Eliminate negative keywords that could block relevant traffic.
• Ignore suggestions to add relevant new keywords.
• Add Customer Match lists with data that is more than 90 days old.

The correct answer is:

• Eliminate negative keywords that could block relevant traffic.