Task: Question Answering
Input (English): Question: In a flight of 600 km, an aircraft was slowed down due to bad weather. Its average speed for the trip was reduced by 200 km/hr and the time of flight increased by 30 minutes. The duration of the flight is?

 Option A: 1 hr

 Option B: 7 hr

 Option C: 9 hr

 Option D: 4 hr

 Option E: 9 hr
Output (English): Option A