Answer:
C. They thought a ban on discrimination against women should be included in the amendment.
Explanation:
The 14th Amendment granted American citizenship to all people born or naturalized in the USA, including ex-slaves. This allowed ex-slaves to be considered citizens and to have the right to vote. This infuriated the women involved in the suffragette movement, as women were not considered in this amendment and therefore were not considerate citizens, neither white nor black, which prevented them from voting and made them not only submissive to white men but also to blacks.