Direction: Rearrange P, Q, R and S to produce correct sentences by selecting the correct options. Charles Goodyear once accidentally P: and found that the resulting rubber Q: dropped a mixture of natural rubber R: was harder, stronger, more elastic and non-sticky S: and sulphur over a hot stove

• A.  PSQR                          
• B.  QSPR
• C.  RSQP              
• D.  SQPR
• E.  None of these