Which statement is correct?

1. When preparing a statement of profit or loss following the nature of expense method, a company must disclose material, labour, depreciation, manufacturing overheads and expenses for administration.

2. A company that prepares the statement of profit or loss and other comprehensive income must disclose various products following a classification explained in the notes.
3. The international Accounting standards IFRSs do not require a disclosure of stock increases of finished goods classified along product categories.
4. A company that prepares the statement of profit or loss and other comprehensive income following the nature of expense method must give information about the product calculation if stock of finished goods is changed.