What is the best interpretation of the statement below?
“The right of citizens of the United States to vote shall not be denied or abridged by the United States or by any state on account of race, color, or previous condition of servitude.”
a. Only certain race and color citizens are allowed to vote.
b. Former slaves cannot be denied to vote.
c. Citizens of any race, color and previous status of slavery are allowed to vote.
d. The right of citizens is to vote.