Q: Increasing levels of air pollution is creating health hazards for people living in the cities.   Courses of action: I. All Industries should be shifted to the outskirts of the cities II. Transport authorities should take steps for converting all public transport vehicles to run on CNG

• 1
  If only course of action I follows
• 2
  If only course of action II follows
• 3
  If either course of action I or II follows
• 4
  If both courses of action I and II follow