單項選擇題

public class enclosingone (  
 public class insideone{}  
)  
public class inertest(  
public static void main (stringargs)(  
enclosingone eo= new enclosingone ();  
 //insert code here 
) 
)  
Which statement at line 7 constructs an instance of the inner class?()

A. InsideOnew ei= eo.new InsideOn();
B. Eo.InsideOne ei = eo.new InsideOne();
C. InsideOne ei = EnclosingOne.new InsideOne();
D. EnclosingOne.InsideOne ei = eo.new InsideOne();

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