Read the following context and choose the best option to answer the question.
Context: During the Spring bank holiday I met a friend who I had met before at an Easter caravan rally in Salisbury . We played on the steep hill on the farm site , with our bikes . I could n't ride up the hill because it was much too steep for my bike riding abilities , so I got off my bike and pushed it up then I got back on and flew down faster than a ferrari !
Question: How did they go so fast on the way down the hill ?
Options: 
A. None of the above choices .
B. They rode their bike .
C. They rode their scooter .
D. They ran .


B