Which of the following statements is correct about the given changes? (i) Drawing copper into a wire (ii) Breaking of a glass (iii) Heating an iron nail till red hot (iv) Inflating a basketball

• A.  (i) and (ii) are chemical changes while (iii) and (iv) are physical changes.  
• B.  (ii) and (iii) are chemical changes while (i) and (iv) are physical changes.   
• C.  All are physical changes.
• D.  All are chemical changes.