The Helsinki Accords were primarily an effort to reduce tension between the Soviet and Western blocs by securing their common acceptance of the post-World War II status quo in Europe. ... The Helsinki Accords are nonbinding and do not have treaty status.
Many nations wanted to find the U.S passage, because they wanted to find a quicker route to Asia. They thought going around Africa was way too long and going across the Mediterranean Sea was too expensive and risky. They thought that sailing west would get them to Asia in no time. In reality, it was North America and they would have to go much farther in order to get to Asia, but they did not know that back then.
The famous Three-Fifths Compromise famously dealt with the issue of how much slaves would "count" in terms of representation of various states in Congress.
I believe it is option C
Hope this helps
