Cause there are fossils on both contents and the fit together like a puzzle piece <span />
Her visual aids do not fit the context of her argument.
But I'm not sure, this question lacks context.
A makes the most sense. here's why: nobody cared if there was a balance of outlawed and allowed slavery states. so b is out. people might have cared about c but not as much because maintaining a balance in votes was more important. There was no need for a balance in cotton and iron. So b c and d all have to do with slavery and a is the outcast so the answer would have to be A.