Given: (Exhibit) What code must you insert on Line 1 to enable the code to print Hello world?

A. Hello myH = new Hello();
Hello.Greeting myG = myH.new Hello.Greeting();
myG.sayHi();

B. Hello myH = new Hello();
Hello.Greeting myG = myH.new Greeting();
myG.sayHi();

C. Hello myH = new Hello(); Greeting myG = new Greeting(); myG.sayHi ();

D. Hello.Greeting myG = new Hello.Greeting() myG.sayHi();