It started with the Chinese Exclusion Act of 1882, but 10 years later it then came to the US opening Ellis Island in which immigrates had spent time before being able to actually enter the US.
<span>The first European explorers to come to Island Southeast Asia were the "Dutch", who came in the 1500s searching for spices, since they eventually set up the infamous "Dutch East India Company"--which served Europe for many years. </span>
The one that differentiates Christopher columbus from Bartolomeu Dias is : Columbus planned to reach Asia by sailing west across Atlantic Ocean, while Dias hope to reach Asia by sailing around Africa and through the Indian Ocean.
Hope this helps
I believe the answer is B only because suffrage means to vote. But it could also include D so I'm not 100% sure.