The two most effective options for Kaveh to organize and present his topic are:
C. He can refer to specific sources he used when conducting his research.
E. He can ask rhetorical questions to create a dramatic and engaging effect.
Referring to specific sources will lend credibility to his presentation and provide his audience with reliable information. Asking rhetorical questions can engage the audience and encourage them to think more deeply about the topic, making the presentation more interactive and impactful.