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 sex. US. Constitution, Amendment 19 How did the Nineteenth Amendment change U.S. ctizenship rights? A by granting full citizenship to women and African-American people B. by granting the right to vote to individuals under the age of 21 C. by granting full citizenship to American Indian people D. by granting women the right to vote