Explanation:

- Option 1: The Registration Act, 1908: This act provides definitions and procedures related to property registration, including terms involving immovable property.

- Option 2: The Transfer of Property Act, 1882: Directly relates to the transfer of immovable property and defines what constitutes immovable property within its context.

- Option 3: The General Clauses Act, 1897: Offers definitions that are applicable across various Indian laws, including what constitutes immovable property.

All three acts provide definitions or clarify the term ‘immovable property’ within their legal context.

Correct Answer: Option 4 - All the above.

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