Let x be the number of games they lost.
They won four games more than they lost, meaning they won 4+x games.
Games won + Games lost = Total games.
(4+x) + x = 18
4 + 2x = 18
2 + x = 9
x = 7
They lost 7 games, won 11 games.
Check : 7+11 = 18.
        
             
        
        
        
B. the attitude and motivations of the characters
        
                    
             
        
        
        
Explanation:
The error is in the last word.
Everyday is an adjective. In other words, it is used to add a characteristic to something. Generally, everyday is used to define something that you see every day. In other words, something typical, mundane, or common.
Every day, on the other hand is a phrase that means "each day" or "all days" depending on the context.
Answer:
The phrase should be written like this:
WE OFFER LOW PRICES EVERY DAY
(We offer low prices every day)