Reactance of a capacitor of capacitance \[C\mu F\] for ac frequency \[\frac{400}{\pi }\] Hz is \[25\Omega \]. The value C is [MH CET 2002]

• A.   \[50\mu F\]        
• B.   \[25\mu F\]
• C.   \[100\mu F\]      
• D.   \[75\mu F\]