Concept:A course of action logically follows if it is practical, targeted, and addresses the root causes mentioned in the statement.
Explanation:The statement identifies vehicle emissions, industrial pollution, and crop residue burning as the main causes of Delhi's severe air quality.
Course of action I suggests temporarily banning all non-CNG private vehicles.
This step only controls vehicle emissions and does nothing about industrial pollution or crop burning.
Such a ban would also be difficult to enforce and would cause major inconvenience to citizens.
Therefore, course I does not logically follow.
Course of action II suggests building a robust public transport system powered by renewable energy and offering subsidies to farmers for using bio-decomposer technology.
A strong public transport system reduces dependence on private vehicles, thereby cutting vehicle emissions.
Subsidising bio-decomposer technology directly tackles crop residue burning, which is a major seasonal contributor to Delhi's poor AQI.
Thus, course II provides a comprehensive and feasible solution to the crisis.
So, only course II follows.
Answer:D. Only II follows