The correct answer is B. It was strongly opposed by a group of Southern Democrats.
The Civil Rights Act of 1964 faced significant opposition from many Southern Democrats, who were against the legislation that aimed to end segregation and discrimination based on race, color, religion, sex, or national origin.
Options A, C, and D are not accurate representations of the Civil Rights Act of 1964. The Act did not include a national minimum wage, its primary focus was on prohibiting discrimination in various areas such as employment and public accommodations rather than specifically addressing fair housing, and while it did have political repercussions, it did not lead to a Democratic dominance in Southern states, as many white voters shifted to the Republican Party in the years following its passage.