C is the answer you are looking for. A common idea isn't a moral, the generalization is the Main Idea, but not quite the moral. The thought of the characters almost never have the moral in them. Therefore, C is your answer.
Bellerophon used bow and arrows to kill Chimera !
Answer:
The answer Is<em> D. What was the garden like before Rikki-tikki arrived?</em>
Explanation: