In can we cultivate our own happiness How do paragraphs 16-19 contribute to the main idea of the text?

The inclusion of these three happy people categories from Seligman's book shows how different people can achieve happiness through different means as long as it interests them.

Explanation:

In the informational text "Can We Cultivate Our Own Happiness", ABC News presents a report on the research done by Martin Seligman on "happiness". The text is from the report by the news agency about what comprises and cause happiness in a person.

In the paragraphs 16-19, "the three happy people categories that Seligman set forth in his book" are listed. These lines contribute to the overall theme of the whole text by showing how different people can also find happiness by doing different things, whatever it may be that they find interesting for themselves.