(A) List format
(B) How-to format
(C) Secret of format
(D) Negative angle format
The above blog post is an example of a List format because it mentions how many ways you can do that thing with a Number. Whenever there is a number mentioned in the headline showing you something specific to do in the form of a list then you can identify it as a List Format headline.
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.