With its very large population of vehicular traffic, Delhi is one of the most polluted cities of the world. Which of the following steps were taken by the government to reduce vehicular pollution in Delhi ?
(i) Switching over the entire fleet of public transport i.e., buses, autorickshaws, from diesel to CNG
(ii) Phasing out of old vehicles
(iii) Use of unleaded petrol in vehicles
(iv) Use of low sulphur petrol and diesel in vehicles
(v) Use of catalytic converters in vehicles
(vi) Application of stringent pollution level norms for vehicles such as Euro-II norms, etc.

Options

A. (ii) and (iv)
B. (ii), (iv) and (v)
C. (iv) and (v)
D. All of these

Answer

D