Task: Question Answering
Input (English): Question: n a 1000m race, if A gives B a start of 40m, A wing by 19sec. But if A gives B start of 30sec, B wins by 40m.
Find the time taken by B to run 5000m race?

 Option A: 300

 Option B: 400

 Option C: 500

 Option D: 600

 Option E: 750
Output (English): Option E