Explanation:

- Chapter II of the Transfer of Property Act, 1882 deals with the transfer of property by act of parties.

- The Act itself specifically states that nothing in Chapter II shall be deemed to affect any rule of Mohammadan law.

- This means that rules of property transfer under Mohammadan (Muslim) law remain unaffected by the provisions of this Act.

- The Act does not mention exceptions for Christian law or Parsi law in this section.

- Option 1: Mohammadan law (Correct)

- Option 2: Christian law (Not mentioned)

- Option 3: Parsi law (Not mentioned)

- Option 4: None of the above (Not correct)

- Therefore, the correct answer is Option 1: Mohammadan law.