Arrange the following Acts in order in which they were enacted. Use the codes given below. 1. The Industrial Employment (Standing orders) Act. 2. The Indian Trade Unions Act 3. The Industrial Disputes Act 4. The Employment Exchange (Compulsory Notification) Act Codes:

• A. 2, 1, 3, 4                      
• B. 3, 4, 1, 2
• C. 1, 2, 4, 3                      
• D. 4, 3, 2, 1