As we can see, The passage discusses how people act irrationally, often motivated by immediate passions rather than long-term, enlightened self-interest. The writer says if people acted from rational self-interest, it would improve the world significantly.
The correct option is (A):The problems of the world can best be solved by rationality and enlightened self-interest.
In the passage, The author expresses concern that the growing power of science and communications can increase the potential for harm, particularly if used irrationally.
The correct option is (D): One of concern about their harmful potential.
As we can see, the passage discusses on how irrationality often results from giving in to immediate passions or desires without considering the long-term consequences of that act.
The correct option is (D): Power to resist yielding to strong passions.
The author feels this way because in passage appealing to altruism is ineffective as it will only resonate with people who are already inclined to be altruistic.
The correct option is (A): Not all people are altruistic by nature.
The Author refers King Demos to Despot because the author is condemning the forces that manipulate and control public opinion like a despot would.
The correct option is (D): Despot