Explanation:

- The idiom "To paddle one's own canoe" means to be independent or self-reliant. It implies taking responsibility for one's own actions and depending on oneself.

- Correct Answer: Option 1 - Depend on oneself

- Option 2, "To take rest," does not relate to independence or self-reliance. It involves relaxing or recuperating, which is unrelated to the idiom.

- Option 3, "To exercise hard," describes physical exertion and has no connection with being independent or self-reliant.

- Option 4, "To act in a childish way," suggests immature behavior, which is not the intended meaning of the idiom.