Final answer:
Squatter settlements are not associated with modern immigration/immigrants in core-developed countries.
Step-by-step explanation:
Among the options given, 'Squatter settlements' is NOT associated with modern immigration/immigrants in core-developed countries. Squatter settlements refer to areas with makeshift housing that are often characterized by poverty and lack of infrastructure. While immigrants may face challenges related to housing, they do not typically form squatter settlements in developed countries. Instead, they may face issues related to acculturation, ethnic enclaves, and assimilation.
Learn more about modern immigration/immigrants in core-developed countries