Final answer:
Marginalization is best described as excluding groups from mainstream culture, denying them equal treatment and limiting their access to resources and opportunities.
Step-by-step explanation:
Marginalization is best described as excluding groups from mainstream culture. It refers to the process of placing certain groups on the fringes of society, denying them equal treatment and limiting their access to resources and opportunities. Marginalization can affect various groups such as racial minorities, ethnic minorities, religious minorities, LGBTQ community, and people with disabilities. It involves differential and unequal treatment based on physical or cultural characteristics, leading these groups to experience collective discrimination.