Read the following excerpt from The Jungle Book by
Rudyard Kipling
And he grew and grew strong as a boy must grow who
does not know that he is learning any lessons, and who
has nothing in the world to think of except things to eat.
Mother Wolf told him once or twice that Shere Khan
was not a creature to be trusted, and that some day he
must kill Shere Khan; but though a young wolf would
have remembered that advice every hour, Mowgli
forgot it because he was only a boy-though he would
have called himself a wolf if he had been able to speak
in any human tongue.
Which detail adds tension to the rising action of the
story?
Mowgli grows stronger and learns life lessons
without knowing it.
O Mother Wolf tells Mowgli that some day he will have
to kill Shere Khan.
Mowgli forgets his mother's advice because he is a
young boy
Mowgli would call himself a wolf if he had the ability
to speak like a human.

The detail that would have added tension to the rising action of the story is: Mother Wolf tells Mowgli that someday he will have to kill Shere Khan.

What is the rising action of a story?

The rising action of a story refers to the events in the story that lead to the climax.

In this story, when the mother told Mowgli about his mission to kill here Khan, this must have been a contributory factor to the climax of the story.

So, option A is right.

Learn more about the rising action here:

https://brainly.com/question/17382923