Answer:
The topic of the paragraph is presented in sentence number 2, while the supporting details are presented in sequences 5, 6 and 7.
Explanation:
The topic of a paragraph refers to the subject that the paragraph will cover and present to the reader. Generally, this topic is presented right in the first sentences, which allows the reader to recognize, right at the beginning, the subject that will be discussed in the text. The paragraph presented in the question above is an example of this, as the topic is presented in the second sentence, which allows the reader to realize that the subject covered in the paragraph will be about how society is influential in our way of seeing the phases a life.
The supporting details, on the other hand, are the sentences that justify the topic of the text, that is, the supporting details show why this topic is real and relevant to be discussed. In this case, sentences 5, 6 and 7 present evidence of how youth is seen differently in two different societies.