Water is a scarce resource in Singapore because the island’s limited geographical area leaves very little land from which to gather water for its $4.8$ million people. Which method would be least successful in dealing with its water scarcity?
- Aexempting large families from paying water taxes
- Bimporting water from neighbouring countries
- Cintroducing a water tax that rises as consumption rises
- Dredirecting funds from education to schemes to purify rainwater