Namespaces - Programming

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();

A 1, 3

B 2, 4, 5

C 1, 3, 5

D 5 only

ANS:A - 1, 3

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