Swati classified a few changes occurring around us as shown in the table. No. Changes Type 1. Sharpening of pencil Physical, reversible 2. Evaporation of water Physical, irreversible 3. Opening of a bud Chemical irreversible 4. Rusting of iron Chemical reversible Which of the changes is/are classified correctly?

• A. 2 and 3 only
• B. 3 and 4 only
• C. 1 and 4 only
• D. 3 only