excerpt from Cry, the Beloved Country by Alan Paton

And Kumalo clapped his hands in astonishment, and said, Au! Au you speak Zulu, so that the small boy laughed with still greater pleasure, and Kumalo clapped his hands again, and made many exclamations. The door opened and his wife came in, and he said to the small boy, this is my wife, and he said to his wife in Zulu, this is the son of the man. The small boy stood up and made a bow to Kumalo’s wife, and she stood and looked at him with fear and sorrow. But he said to her, You have a nice house here, and he laughed. She said to her husband in Zulu, I am overcome…

Question 1
Part A

Which theme is revealed when Kumalo teaches James Jarvis’s grandson Zulu?