Nthe late twentieth century, personal identity became a central issue for artists. such groups as who had previously been excluded from mainstream culture, began celebrating their differences.

Women, ethnic minorities, homosexuals, and the transgender community

Explanation:

These groups found their voices in the 20th century because it was a period where social and moral issues were contradicted, and firmly tried to be overthrown. The social representativity was possible because these groups fought, and struggle to be seen and to be heard.

i believe it is a. a segment : )