21. What argument is the author making when he says "And that's the kind of frank, honest talk we need again."
a. More people need to speak their mind and fight those they disagree with.
b. More conversations between different opposing viewpoints will help this country fight social injustice.
c. It is better to fight with actions than with words.
d. When people get together to talk, it will only result in more fighting and disagreement.