In a pressure-kerosene stove (i) We pump kerosene and convert it into vapours. (ii) The vapours are then ignited. Which of the following option is correct about the above statements?

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