Match List-I and List-II and select the correct answer using the option given below the lists.
| List-I | List-II |
| a. Free trade area | 1. No restriction on trade and factor movement |
| b. Customs union | 2. Trade is free and no customs duties |
| c. Common market | 3. No customs duties; duties on non-members |
| d. Economic union | 4. Advanced stage of integration |
A. a-2, b-1, c-3, d-4
B. a-3, b-2, c-4, d-1
C. a-2, b-3, c-1, d-4
D. a-1, b-3, c-4, d-2
Answer: Option C

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