The answer to your question is a.
        
                    
             
        
        
        
Answer: a color wheel is a representation of colors that are arranged by their chromatic relationship, you can use color wheels in different ways one being that you can use it help show you complementary colors, or help you choose what colors you want to use on your art.
 
        
                    
             
        
        
        
<span>Of the contemporary artists who are exploring large-scale drawings on walls, 
Gary Simmons specializes in the medium of chalk.
He is an American artist who often uses cultural stereotypes in his art in order to convey a specific message. He is one of the rare artists today who uses chalk in order to do that, drawing immense images on a black background which astonish his audience. I've attached an example of his work.</span>