Monthly salary of a person is Rs. 15000. The central angle of the sector representing his expenses on food and house rent on a pie chart is \[\text{60 }\!\!{}^\circ\!\!\text{ }\]. The amount he spends on food and house rent is

• A.  Rs. 5000                    
• B.         Rs. 2500        
• C.         Rs. 6000                    
• D.         Rs. 9000