The fallacy that is described by your friend's belief that there is no more segregation is B) legalistic fallacy.
This is the belief that there is no more racism in a certain sector simply because there are laws that exist against that sort of racism.
Your friend here does not believe in racist segregation because there are laws against it so this must be a legalistic fallacy.
In conclusion, option B is correct.
Find out more on racial fallacies at https://brainly.com/question/26683818.