To be honest I don't think this is worth stressing over you get to meet a great person who did a lot to make this future I think the best thing you could do is stay respectful and just say it if you feel the need to. Thank you so much. It doesn't hurt if you do your research on that specific person if you want to ask about specific events they were involved in
Answer
B. They left carvings behind.
Explanation
What remains of their architecture and art, including stone carvings and inscriptions on their buildings and monuments.
The Democratic party, because the disapproved of slavery