According to Swedish social scientist Gunnar Myrdal, ______?
1) mob violence stemmed from a "deep-seated racial prejudice . . . in which whites saw blacks as 'something less than human'"
2) "whites' prejudice would make it impossible for them to live in harmony with blacks"
3) "the problem of the Twentieth Century is the problem of the color-line"
4) there is "no more intractable, pervasive issue than race" and that when it comes to race, we are "a country of strangers"
5) "America is free to choose whether the Negro shall remain her liability or become her opportunity"