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; /* 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(); } }

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