Read the following passage and answer the question given below:

Once upon a time there lived a crow couple who had built a nest on the top of a tree. In a burrow, at the bottom of the tree lived a snake too. Very often the snake used to crawl up the tree and eat all the eggs that the lady crow used to lay. The crows were deeply grieved and when this happened time after time they decided that the snake was to be got rid of somehow. So the crow approached his friend, the jackal, and asked for a plan. The jackal then told him to go and fetch a costly thing from the palace of the King and place the thing at the mouth of the burrow of the snake. The crow went to the palace and stole a necklace of the queen while she was bathing. The guards of the palace ran after it. The crow then dropped the necklace into the burrow of the snake amid the roots of the tree. The guards, on reaching the bottom of the tree, found the necklace and it was guarded by the snake. Then they killed the snake and recovered the necklace. The crow's family was relieved that their eggs were safe.