Answer:
A
Explanation:
He would applaud the author for arguing in favor of a passive approach to racial equality.
We do not want the men of another color for our brothers-in-law, but we do want them for our brothers.
According to the statement above we can explain that they really want a mixed color family, although those men are brother-in-law, they are parts of the family, really brothers in heart same way.
The correct answer is disease.
Many of the Europeans were carrying disease that they had acquired immunity to since the diseases had been rampaging around Europe for centuries.
But the people of the Americas did not have the immunity and it almost wiped them out.