Question

How do the subheadings under "after high school" contribute to the organization of "career planning for high schoolers."? by informing readers of the education options being described by defining key terms essential to college applications by providing links to supplemental sources of information by sharing students' insights about life after graduation?

Answer 1

I believe the answer is: by informing readers of the education options being described

By putting the phrase  "After high schools" ,  readers would know that the information that being put below the phrase would include the set of options/paths that can be done after graduation. In most career planning forms, it would contain information regarding college, scholarships, and the type of careers that can be taken with current high school diploma.

Answer 2

By informing readers of the education options being described