Which of the following countries were founding members of the North Atlantic Treaty Organization (NATO), established in 1949?
1. Belgium
2. Canada
3. Germany
4. Iceland
5. Italy
6. Netherlands
7. United States
Select the correct answer using the code given below:
1
2, 3 and 7 only
2
3, 4 and 5 only
3
1, 2, 3, 5, and 7 only
4
1, 2, 4, 5, 6, and 7 only