Statement : The air and rail services have been severely disrupted due to thick fog in the northern part of the country. Courses of Action : I. The rail and air services should be temporarily suspended in the region. II. People should be advised to make their travel plan keeping in mind the probable disruption resulting in delay or cancellation of services. III. The government should immediately install modern machines which will enable it to guide the rail and air services even if the thick fog develops. Correct Answer All follow Answer: Option 4 Keeping in mind the safety and convenience of passengers, both I and II follow. III clearly suggests a remedy to the problem and hence it also follows.