Choose the correct sentence which is built from the words and phrases given.
Who / develop / competition / rule / synchronize / swim //?
A.                                        Who developed the competition rules of synchronized swimming?                                                                                                                                                            
B.                                        Who was developed competition rule for synchronizing swim?                                                                                                                                                            
C.                                        Who has developed a competition rule on synchronize swimming?                                                                                                                                                            
D.                                        Who had developed competition rules with synchronized swim?