What is most significant about the line Atticus (and other characters) keeps repeating: "It's not time to worry yet"?

a) It shows that Atticus is an optimist who looks forward to better times to come in the future

b) It demonstrates that conditions in Maycomb are not as bad as some people believe them to be

c) It indicates that Atticus does not always think ahead and prevent the worst possible circumstances from happening

d) It suggests that Atticus is a secure member of white society and doesn't have anything to be concerned about