Consider the following statements about the Parliament (Prevention of Disqualification) Act, 1959:

1. It exempts a specified list of offices from disqualification on the ground of holding an office of profit.

2. The list of exempted offices under the Act has been amended several times over the years.

3. The term 'office of profit' is itself precisely defined in the text of the Constitution.

Which of the statements given above is/are correct?