The problem of traffic congestion in Athens has been testing the ingenuity of politiciansand town planners for years. But the measures adapted to date have not succeeded indecreasing the number of cars on the road in the city centre. In 1980, odds and evensnumber-plate legislation was introduced under which odd and even plates were bannedin the city centre on alternate days thereby expecting to halve the number of cars in thecity centre. Then in 1993 it was decreed that all cars in use in the city centre must befitted with catalytic converters, the only condition being that the buyer of such a 'clean'car offered for destruction, a car at least 15-years old.Which one of the following options if true would best support the claim that themeasures adopted to date have not succeeded?
1. In the 1980s, many families purchased second cars with the requisite odd or even number plate.
2. In the mid-1990s, many families found it feasible to become first-time car owners by buying a car more than 15 years old and turning it in for a new car with catalytic converters.
3. Post-1993, many families found it feasible to become first-time car owners by buying a car more than 15-years old and buy 'clean' cars from the open market, even if it meant for going the import tax subsidy.
4. All of the above