Since you did not provide the options in your question, I had to do some looking around, but I believe I have found them. I will mark what I believe are the answers by italicising and bolding them.
<em>Most countries are increasingly specializing production.</em>
<em>Most countries are becoming more interdependent.</em>
Most countries are experiencing unchanging amounts of exports and imports.
<em>Most countries are increasingly influenced more on the foreign sector.</em>
Most countries are relying less and less on international trade.
Hopefully this gives you some help.
South Carolina was the first state to declare secession because of him because they believed, just like the nullification crisis, that Lincoln's policies were favoring north and were Against the south. Unlike the Jackson era where the thing in question was tariffs, here it was resolving about slavery.<span />