A jacket at a clothing store is being discounted by 10%. If the jacket was originally priced at x dollars, which of the following expressions does NOT represent the final price of the jacket before sales tax is added?
 A. 
 x – 1.10x
 B. 
 0.90x
 C. 
 x – 0.10x
 D. 
 x(1 – 0.10)