|   With reference to the systematic names, select the correct structures. 
                          
                             
                              |   | 
                             
                             
                              
                                   
                                    |   The 
                                        structure of  
                                        5-chloro-5-ethyl-6-methylheptan-3-ol is 
                                      
                                         | 
                                      | 
                                   
                                  | 
                             
                           
                            
                             
                              |   | 
                             
                             
                              
                                   
                                    |   The 
                                        structure of 
                                        6-chloro-2,4-difluoro-3,4-dimethylhexan-3-ol 
                                        is 
                                      
                                         | 
                                      | 
                                   
                                  | 
                             
                           
                            
                             
                              |   | 
                             
                             
                              
                                   
                                    |   The 
                                        structure of  
                                        5-bromo-4,4-diethyl-5-methylhexan-2-ol 
                                        is 
                                      
                                         | 
                                      | 
                                   
                                  | 
                             
                           
                            
                             
                              |   | 
                             
                             
                              
                                   
                                    |   The 
                                        structure of  
                                        5-bromo-4-chloro-3-ethyl-5-fluoro-4-methyloctan-3-ol 
                                        is 
                                      
                                         | 
                                      | 
                                   
                                  | 
                             
                           
                            
                             
                              |   | 
                             
                             
                              
                                   
                                    |   The 
                                        structure of  
                                        4,4-dibromo-2,7-dichloro-3,6,6-triethyl-5-fluoro-7-methyloctan-2-ol 
                                        is 
                                      
                                         | 
                                      | 
                                   
                                  | 
                             
                           
                            -- 
                            End -- 
                           |