“All Socs aren't like that,” she said. “You have to believe me Ponyboy. Not all of us are like that”

Pony Boy cannot seem to understand why anyone that was a Soc would have any problems.  He thinks they have all they need with fine homes and money...

Greasers, on the other hand, are much poorer than the Socs and do not have the financial means that Socs have.  They also snub the Greasers.

Explanation:

Why would the Socs have problems if they have money?  

This is how Pony Boy thinks...

the correct answer is a. how to make proposal that works.

indeed, the register is quite formal and the tone is especially objective as it avoids the use of the first and second person singular (i, you) and opts instead for the third person plural which is more impersonal and focuses on the data and the argument that is being developed by the author. the formality adds the impression of respectability to the work and the impersonality adds objectivity to it.