The answer is are because its a verb that is stating something.
I would think the answer is B, hope i could help. :)
Answer:
The correct option is Option <em>'</em><em>B</em><em>'</em>
In his most famous and eloquent dissent, Harlan held that “our Constitution is color-blind,” that “in this country there is no superior, dominant ruling class of citizens,” and that it is wrong to allow the states to “regulate the enjoyment of citizens' civil rights solely on the basis of race.
Hoped this worked :)