Consider the following statements regarding possession of property disproportionate to known income under PCA, 1988: Statement 1: A public servant possessing property worth Rs. 1 crore when annual salary is Rs. 5 lakhs triggers presumption. Statement 2: The public servant must explain the source of excess property under reverse burden framework. Statement 3: If explanation is unsatisfactory, property is confiscated and public servant prosecuted. Statement 4: Legitimate sources like inheritance or gifts automatically exempt from disproportionate property scrutiny. Which statements are correct?