Diary entry about going to visit your cousin in Johannesburg​

What is the central idea in this advice from branch rickey to jackie robinson?  

What causes cassius to delay killing caesar? a. the crowds around caesar b. a violent storm c. brutus’s reluctance d. the disorganization it the resistance

In about two hundred words, explain how the author's use of folktales and symbolism add meaning to the story and convey the central theme of the novel: the disintegration of the traditional igbo society as a result of its contact with european practices and beliefs.