Which of these excerpts from the novel is an example of dramatic irony? a. "the egwugwu with the springy walk was one of the dead fathers of the clan." b. "this man told him that the child was an ogbanje, one of those wicked children, who, when they died, entered their mothers’ wombs to be born again." c. "when people are invited to a great feast like this, they take new names for the occasion." d."ezinma did not call her mother nne like all children. she called her by her name, ekwefi, as her father and other grown-up people did."