Task: Question Answering
Input (English): Question: Tom drives from town Q to town B, driving at a constant speed of 60 miles per hour. From town B Tom immediately continues to town C. The distance between Q and B is twice the distance between B and C. If the average speed of the whole journey was 36 mph, then what is Tom's speed driving from B to C in miles per hour?

 Option A: 12

 Option B: 20

 Option C: 24

 Option D: 30

 Option E: 36
Output (English): Option B