The correct answer here is the second option.
When the US helped the Panamanian people win their independence from Columbia they got the rights to build and operate the Panama Canal in perpetuity. But Panamanian people had no say in this and thus over time they wanted it back. After the riots, which were also presumably instigated by the soviet agitators, the conflict arose between Panama and the US. So, because of the riots a new deal was made.
Where in the world did you here this from
I believe the correct answer should be Human Rights.
An effect of the discovery of the New World in the late fifteenth century was a global exchange of plant life as different plants were transported to America where they thriwed, but different plants were also transported back to Europe and thriwed there as well.