Dred Scott was a slave that sued his owner for his freedom. The case went to the Supreme Court. In the Courts decision they said
Dred Scott is a free man
O slavery is only legal in slave states
slaves can sue thier owners in court
O a slave is property and the owner can take its property to any state even where slavery in not
allowed

interdependence is when all participating groups and individuals depend on each other. if you depend on one anothers goods, you end up trading in order to get the items you're looking for. (for ex: if i have food and you have water, we trade in order to depend on each other to live)

i think it would be a

i believe he should not do investment b

the anwser is missions