Which statement should be added in function a() of class y to get output i love csharp ? class x { public void a() { console.write("bye"); } } class y : x { public void a() { /* add statement here */ console.writeline(" i love csharp "); } } class program { static void main(string[] args) { y obj = new obj(); obj.a(); } }

• A. X.a();
• B. A();
• C. Base.a();
• D. X::a();