(A) YouTube
(B) Messages
(C) Google Drive
(D) Gmail
Explanation
Similar audience targeting is available for the Display Network, the Search Network, and Youtube. The Similar audience feature allows you to find new people with similar profiles.
Conclusion
This question is a part of the Google Ads Search Certification exam. You can find answers to all the questions asked in this exam in our Google Ads Search Certification Exam Answers page.