The gross weight of a package and its contents is 11 pounds 5 ounces. If the packaging weighs 1 pound 15 ounces, what's the net weight of the contents? 

       A. 9 lb. 6 oz.   B. 10 lb. 5 oz.   C. 12 lb. 20 oz.   D. 10 lb. 6 oz.