Which of the following are examples of a chemical change?

By Anthony

Which of the following is/are the example/examples of chemical change?
1. Crystallization of sodium chloride
2. Melting of ice
3. Souring of milk
Select the correct answer using the code given below.

1 and 2 only
3 only
1, 2 and 3
None

Option 2 : 3 only