Answer:
D. To explain the steps necessary to enter a contest
Step-by-step explanation:
The purpose of the given text is to explain the steps necessary to enter a talent contest. It's written in an entertaining, enthusiastic way.
Option A is incorrect because it doesn't tell about multiple ways to become a child star. It focuses on one particular contest, which is just one of the ways.
Option B is incorrect because, despite being written in an entertaining way, the text doesn't contain stories of talent auditions.
Option C is incorrect because the text doesn't simply persuade children to develop their talents. There are many ways to do that without applying for a contest. Of course, they'll have to develop their talent if they want to apply, but the emphasis is not on that. The text tells us who can apply and explains all necessary steps. This is why option D is the correct one.