單項選擇題
                                    
    were the majority of Self Optimization related feature？（）
    
                                
    
                                
                                    
    
	A.PCI自配置
    
	B.Automated neighbour configuration-ANR 
    
	C.Energy savings 
    
	D.Cell Outage Detection and Outage Mitigation
    

    
                                
                                
                                
    
                                    
                                    
                                
    
                                

                        
    
                    
                
    

                
                    
                    

            
    
            
    
                
            
    
        
    
    
    
    

    

    
    
    
        
    
            
    
                
                
    

                
    
            
    
        
    
    
    

    

    
    
    
        
        
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