What does this excerpt from Langston Hughes's poem "I, Too" show us about America?

was a long, primarily nonviolent series of events to bring full civil rights and equality under the law to all americans. the era has had a lasting impact on united states society, in its tactics, the increased social and legal acceptance of civil rights, and in its exposure of the prevalence and cost of racism. in the south violence and fraud in southern elections from 1868 to 1876, which had reduced black voter turnout and enabled southern white democrats to regain power in state legislatures across the south

according to my calculation, the answer is d.

battle of the bulge, but are there any multiple choice options?

examples that illustrates limits on texas governor´s power are: it can remove only its own appointees; the judiciary is elected; needs senatorial confirmation.