Explanation:

- Option 1: True

- Section 41 of the Transfer of Property Act, 1882, embodies the principle of estoppel. It applies when the transferor, acting as an ostensible owner, transfers property for consideration, and the transferee acts in good faith.

- Option 2: False

- This would be incorrect as Section 41 indeed relates to estoppel.

- Option 3: Partly true

- This option isn't ideal because Section 41 is fully related to estoppel within its context.

- Option 4: None of the above

- None of these would apply, as Option 1 is the correct choice.

Option 1: True is the correct answer.