B. Unalienable
Explanation: Natural rights of men are Life, Liberty, and the Pursuit of Happiness. These are also called unalienable rights because unalienable means “impossible to take away or give up”. These rights were given to men as guaranteed rights, no one is able to take these rights away.
The moral of the story is to not be greedy, King Pluto got his wish but at what cost. The greed clouded his judgment and it lead to the death of his daughter.
Have you read what goes with this question?
The influence of the arts.