Easy answer. It is D. Only problem was that though the Woodrow Wilson proposed the idea the US never joined therefore no country actually listened to the decisions the LoN made.
Ans: The Fugitive Slave Act of 1850 was passed by Congress as one provision of the Compromise of 1850. The harsh terms of the act angered many Northerners and contributed to the sectional division over slavery that led to the American Civil War.
It led to a period of large-scale emigration out of Ireland ( apex) XD :)
I could be wrong but I believe it's the Cape Floristic Kingdom