The correct answer would be B. It makes the sentence clear and concise.
The answer is C.
The message the author is trying to convey in this exceprt is that human action has already harmed the environment significantly by causing a large increase in the extinction rate for many animals.
The author advocates for humans to take specific action to avoid further destruction of the already damaged environment.
In the 19th century, Realism in France is often mistaken as literary movement because they felt that it laid too much truth specially on external reality. Meanwhile, America needed a type of literature that would explain what was happening to their society. American writers then turned to what is termed as modernism. The influence of realism and naturalismin the 19th century and their truthful illustration of American life and people was shown in post World War I modernism.
Let's number them okay. Since I can't see everything that is said in the picture I will have to assume it is either number 3 or 4.
