Q1: If ListBox is class present in System.Windows.Forms namespace, then which of the following statements are the correct way to create an object of ListBox Class?

1. using System.Windows.Forms; 
   ListBox lb = new ListBox();

2. using LBControl = System.Windows.Forms;
   LBControl lb = new LBControl();

3. System.Windows.Forms.ListBox lb = new System.Windows.Forms.ListBox();

4. using LBControl lb = new System.Windows.Forms.ListBox;

5. using LBControl = System.Windows.Forms.ListBox; 
   LBControl lb = new LBControl();