D. Working hard in school will always pay off in the end.
Explanation:
School leavers and drop outs are the students who do not complete their school studies. They either leave the studies by their will or do not pay attention to the studies so schools take action against them. They may find it suitable option to leave the school without completing their studies but later in life they will regret their decision because they will not be able to finance their basic needs as they might not have reputable job with a handsome salary.
the metamorphosis example: if you put the worm in a pot it turns into a butterfly, sorry I don't think I got it right I don't speak English I use the translator
