Answer: because we are missing the exert, just look in the back half of the paragraph and see if he is having problem with himself or if he is struggling with something  out of his control
Explanation: thats all i can give with that info
 
        
                    
             
        
        
        
Answer:
I think the answer is B or C
 
        
                    
             
        
        
        
I think thew answer is D. "The author supplies the rubuttel that quotes more current research". I'm not 100% sure but it was the best one i could think of. Hope it's right
        
                    
             
        
        
        
Answer:
Explanation:
The goal is to identify any usability problems collect qualitative and quantitative data and determine the participant's satisfaction with the product.