/* Missing statements ? */ 

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✪ Choose the correct option.

/* Missing statements ? */ 
 public class NewTreeSet extends java.util.TreeSet {   
   public static void main(String [] args) {   
     java.util.TreeSet t = new java.util.TreeSet();        
     t.clear();   
   }    
   public void clear() {     
     TreeMap m = new TreeMap();   
     m.clear();   
   } 
 }

which two statements, added independently at beginning of the program, allow the code to compile?

  1. No statement is required
  2. import java.util.*;

     

  3. import.java.util.Tree*;

     

  4. import java.util.TreeSet;

     

  5. import java.util.TreeMap;

     

A. 1 only
B. 2 and 5
C. 3 and 4
D. 3 and 5