Segregation refers to:

a.the extermination of a racial or ethnic group.
b.negative attitudes toward categories of people.
c.unequal treatment of individuals on the basis of their membership in a category.
d.the physical separation of different groups of people.
the forced removal of a minority from a country.

3 answers

No.

Look up segregation in a dictionary, like dictionary.com.
is it d?
Yes, d.