Correct option is C
Statement: The railway authorities have decided to run two special holiday trains between City A and City B on Tuesdays and Fridays from 19th October 2023 to 5th January 2024.
Reason I: "Flights from City A to City C are booked to capacity, and airlines are planning to increase the number of flights operating between City A and City C from August 2023."
· This reason is irrelevant to the decision of running special trains between City A and City B because it refers to flights and a different city (City C).
Therefore, Reason I does not explain the statement.
Reason II: "Many migrants from City B who work in City A travel back to City B on trains from October to January for the festivals. The existing trains cannot accommodate this increase in passenger demand."
· This reason directly addresses the situation described in the statement. The special trains are likely being run to meet the increased passenger demand due to festival-related travel between City A and City B.
Reason II explains the statement.
Conclusion: Only Reason II is a possible explanation for the statement.
Final Answer: C. Only II is a possible reason.