A T-shirt costs \[Rs.({{x}^{2}}-xy-{{y}^{2}})\] and a sweater costs \[Rs.({{x}^{2}}+8xy-2{{y}^{2}})\] and a jeans cost \[Rs.({{x}^{2}}-3xy+{{4}^{2}})\]. After buying these items Mohit paid \[Rs.{{(2x+y)}^{2}}\] to the cashier. How much amount Mohit receive from the cashier?

• A.  Rs. 0     
• B.  Rs. 2x
• C.  Rs. (x+y)       
• D.      Rs. 2y