If the area of base of a cone is 154 cm2 and height is 9 cm, then the curved surface area of cone will be

• A.  200.53 \[c{{m}^{2}}\]            
• B.  220.53 \[c{{m}^{2}}\]      
• C.  240.8 \[c{{m}^{2}}\]                         
• D.  250.8 \[c{{m}^{2}}\]