(A) Campaigns, ad groups, keywords
(B) Ad groups, campaigns, keywords
(C) Keywords, campaigns, ad groups
(D) Keywords, ad groups, campaigns
From top to bottom, your search account structure hierarchy should look like Campaigns, ad groups, keywords.
Campaigns are at the top of the account structure hierarchy and keywords are at the bottom of the account structure hierarchy.
This question is a part of the HubSpot Digital Marketing Exam. You can get all the updated answers to this exam on our HubSpot Digital Marketing Certification Exam Answers page.