I also say its to neaten up forgive me if its wrong
Because pony boy is deciding if he made the right choice
ITS (A.) Cause he said "you" which is directly addressing the reader.
1. An article in a news magazine titled " Fences wont stop illegal immigration"
Purpose: to persuade
2. "The iPhone versus the Android ; Which one is best ?'' - an article in a computer magazine
Purpose: to evaluate
3. An article in a newspaper titled " Entire city Installs solar panels on its Homes"
purpose: to inform
4. "Current trends : The Decline of Marriage '' - an article in a popular science magazine
purpose: to analize