The topic of a personal narrative should be about a central point in an interesting personal incident a rule of life that the writer believes everyone should follow or something so personal that it is important only to the writer or the personal viewpoints of at least three important people in the writers life

Answer:

B: Because of one man’s actions, whales never eat human beings.

This is the central idea of this passage from "How the Whale Got His Throat.”

Explanation:

“How whale got his throat” is a beautiful story by “Rudyard Kipling”. It states why whales which is the largest mammal in the world, can eat only small things.  

The whale attacks a child, but its attempt got unsuccessful as a man had wounded the whale’s throat with jack-knife and suspenders. So, whale was not able to eat the child. So, because of one man’s actions, whale can no longer eat human beings as this memory of that whale was passed onto the future generations of the whale.