Choose correct option on the basis of statement (i) and (ii) (i) When hydrogen bums in oxygen, water is formed (ii) When water is electrolyzed, hydrogen and oxygen are formed.

• A.  (i) is a physical change and (ii) is a chemical change
• B.  (i) is a chemical change and (ii) is a physical change
• C. Both (i) and (ii) are physical changes
• D. Both (i) and (ii) are chemical changes