B and C, i’m not sure if theirs another one tho
        
             
        
        
        
The correct answer would be the fourth option: My Uncle Bill has such a beautiful voice; many couples have asked him to sing at their wedding.
        
                    
             
        
        
        
Short words (usually less than 5 letters) like an, a, and, ect. You can also capitalize everything in the title if you are unsure.