In Scotland, the number of wild salmon have been reduced because of uncontrolled deep-sea and coastal netting, by pollution, and by various other threats to the fish's habitat.
                    
                
                        - 
                Anumber of wild salmon have been reduced because of uncontrolled deep-sea and coastal netting
                                    分析该选项
                            
 
                        - 
                Bnumber of wild salmon is reduced because deep-sea and coastal netting is not controlled
                                    分析该选项
                            
 
                        - 
                Cnumbers of wild salmon has been reduced because of uncontrolled deep-sea and coastal netting
                                    分析该选项
                            
 
                        - 
                Dwild salmon's numbers are reduced by deep-sea and coastal netting that is not controlled
                                    分析该选项
                            
 
                        - 
                Ewild salmon's numbers have been reduced by uncontrolled deep-sea and coastal netting
                                    分析该选项