Which of the following are OPEC countries?
1. Saudi Arabia
2. Iran
3. Kuwait
4. Russia
5. Algeria
6. Pakistan
7. Venezuela
Select the correct code given below.
1
1, 2, 3, 4, and 5 only
2
1, 2, 3, 5, and 7 only
3
1, 2, 3, 6 and 7 only
4
1, 2, 3, 4, 5, 6 and 7