Harriet Beecher Stowe's Uncle Tom's Cabin infuriated the South because it portrayed a black person as the martyr, as an honorable, good, and wise person. whereas a white person was shown as a sinner and a bad man.
As you already know, the South was the part of America that had slaves and that was against the abolition of slavery, so of course this novel infuriated them.
3 is the answer because 3 times 4 is 12, 3 times 8 is 24, and 3 times 10 is 30.
Species Diversity
-All the other answer choices are defined for a different purpose. Although it might be too obvious that species diversity is the answer because the word "species" is mentioned in the question, it's actually the right answer.
Let me know if I'm wrong or not,
Hope this Helps!