Calculate the area of rectangle given below if each square has an area of\[4\,{{m}^{2}}.\]

• A.  \[80\,{{m}^{2}}\]      
• B.  \[64\,{{m}^{2}}\]        
• C.  \[40\,{{m}^{2}}\]            
• D.  \[15\,{{m}^{2}}\]