Which of the following can be a source of Lead pollution :
1. Paint
2. Batteries
3. Combustion of Aviation fuel
4. Ore and metals processing
Select the correct answer from the code given below.
1
1, 2 and 3 only
2
2 and 4 only
3
1, 3 and 4 only
4
1, 2, 3 and 4