Answer is B. You are given this hint by the words “All men and women are created equal” In the original declaration, they only said “all men” which does not include women or any race other than white. The Seneca falls convention was a meeting to list the grievances of women so their voices could be heard. At this time all men could vote, but women still had no rights to suffrage.
I would try inequalities in the tax structure. The rich were paying less but getting more out the system. Poor could not even buy food. (Let them eat cake.)