Task: Question Answering
Input (English): Question: Susan drove an average speed of 30 miles per hour for the first 40 miles of a trip then at a average speed of 15 miles/hr for the remaining 40 miles of the trip if she made no stops during the trip what was susan's avg speed in miles/hr for the entire trip

 Option A: 35

 Option B: 20

 Option C: 45

 Option D: 50

 Option E: 55
Output (English): Option B