Use an AppExchange product that does fingerprint scanning with native Salesforce Identity  Confirmation
 
        
             
        
        
        
B, C, and D are the correct answers.
        
                    
             
        
        
        
Answer: An individualized audio device. 
Explanation:
Advertising simply refers to an attempt which is made by an individual or company in order to influence the buying behavior of the customer by convincing them to buy a product.
The kind of advertising that is used in Saunders's story when a man and his grandson walk down the street is an individualized audio device. Therefore, the correct option is A.
 
        
             
        
        
        
Input his name in the dictionary function, you can also copy the given name an paste as much as you need