What is the main idea/central idea

Click to read the passage from "lifeboat ethics," by garrett hardin. then answer the question. what is the author's purpose for including the following example in his argument against rich nations poor nations? a. he wants to explain why more nations need to invest in "miracle" crops. b. he wants to disprove the idea that poor nations will eventually be able to support themselves. c. he wants to prove that the green revolution is the best use of people's money. d. he wants to show a solution to poverty that he believes can actually work.

Read this excerpt from lorraine hansberry's a raisin in the sun: based on the character description, what can the reader infer about travis? a. he is organized and has an established morning routine. b. he has inherited his good looks from his mother, not his father. c. he doesn't like having to share a bathroom with other families. d. he is a little boy of about 10 or 11.

Which of these events inspired many of stephen crane’s writings, including the story “an episode of war”?