Answer:
A. Suburban areas
Step-by-step explanation:
In less developed countries, migrants would settle in the central city, which creates squatter settlements. Squatter settlements are basically areas of poor, homemade buildings. Examples of this include Brazil, Bangladesh, etc. Therefore, B and D aren’t right. Brownfield sites are places that were industrial locations, but are abandoned. No one lives there. C isn’t correct. Gentrification is the process of converting a lower income area into a middle income area. Immigrants and migrants who arrive at MDCs are low income people. E isn’t right. This leaves the best answer, A.