National Disaster Management Authority will involve in which of the following disasters?
1. Urban Floods
2. Heat Wave
3. Nuclear and Radiological Disaster
4. Chemical and Biological threat
Select the correct code from the below options:1
1 and 2 only
2
1, 3 and 4 only
3
1, 2 and 3 only
4
1, 2, 3 and 4