Task: Question Answering
Input (English): Question: Rita was running on a 500 metre track at a rate of 100 metres per minute. One minute after Rita started, Liz started running from the same starting point on the track at 150 metres per minute. What is the shortest time that Liz could run on the track in order to meet up with Rita?

 Option A: 4 minutes

 Option B: 3 minutes

 Option C: 2 minutes

 Option D: 1.6 minutes

 Option E: 1 minute
Output (English): Option D