Explain why gentrification might be an alternative to suburban sprawl

One of the things that gentrification represents is that there is an influx of newly wealthy people that exist as a result of a growing class divide.

So, the hope is that people will stay where they historically grew up and improve that area as opposed to moving out and spreading out.

Either way, the root issue is a growing class divide.

In politics, the opposition comprises of political parties that are opposed, in their ideals, to the government party.