Q. What will be the output of the following code

import java.util.Collection;
import java.util.HashSet;
import java.util.Set;
import java.util.TreeSet;

public class SortSet {
public static void main(String…a)
{
Collection<Integer> collection = new HashSet<Integer>();
collection.add(3);
collection.add(1);
collection.add(2); {

Set<Integer> treeSet=new TreeSet<Integer>(collection);
System.out.println(treeSet);

}
}
}

• (A) [1, 2, 3]
• (B) Runtime exception
• (C) [3, 2, 1]
• (D) None of the above