(D) All of the above
All of the above buyer traits are extremely important for a long term content strategy. In Demographics the key metrics are Income levels, Geographic area, Age, Gender, Education levels, etc. In Challenges, you need to find out the most important problems that your audience is facing. Lastly, in identifiers, the key metrics you need are the Cookie Data, Mobile Identifiers like IDFA, Google Advertising ID, Email Address and User Account ID for different social networks.
This question is a part of the HubSpot Content Marketing Exam. You can get all the updated answers to this exam in our HubSpot Content Marketing Certification Exam Answers page.