Labor unions can increase wages through:  
collective bargaining 
Reducing supply of labor
and  increasing demand for labor
In collective bargaining, the workers can send their representatives to negotiate new working terms with employers (including work hours and increasing wages). 
Reducing supply of labor would make the existing laborers become more lucrative, rare and valued. This would resulted in an increase of workers' wages.,
Increasing demand for labor can be done by improving the members' skills through courses or seminar. By having additional skills, the members can be eligible to harder and more rare job opportunities. This usually correlate with higher wages
 
        
                    
             
        
        
        
Answer:
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Explanation:
 
        
                    
             
        
        
        
 Answer:
B) Empathy accuracy model
Explanation:
THIS IS A PROCESS THROUGH WHICH A PERSON CAN INFER THE THOUGHTS AND FEELINGS OF ANOTHER PERSON. To read other people's feelings accurately is fundamental skills that help a person to adjust in different aspects of life. It is a sub-area of interpersonal perception. It is the study and research related to stable and enduring disposition traits and attribution and more study about the unstable and transient disposition of current thoughts and feelings of a person. 
This phenomenon was given by a psychologist named William Ickes and colleagues.  roughly we can analyze it as a mind-reading. 
This phenomenon is used to screen out the selection of police, therapists, psychologists, etc.