Question

What are the main structural elements that need to be included in a skeleton outline?

attention-getter, preview, body, conclusion
introduction, body, transitions, conclusion
preview, main points, subpoints, conclusion
main points, subpoints, supporting evidence, conclusion

Answer 1

I think introduction, body, transitions, conclusion. 

Answer 2

Introduction, body, transitions, conclusion

Step-by-step explanation:

In an article or an essay, there are essential elements that must be outlined and included to have a cohesive, reliable and structured text.

These elements are the introduction (the purpose of the analysis, the main topic sentence), the body ( the paragraphs that cover the analysis), the transitions (connecting words that give consistency to the text), and the conclusion (final insightful remarks).

On an outline skeleton, sketching these elements can be helpful to envision a draft of the text and all the main points that are going to be covered in each element, resulting in a successful and valid piece of writing.