Read the following context and choose the best option to answer the question.
Context: Has n't been riden that much because I really do n't know how to ride and I ca n't take the time to try and pick it up . I bought the bike because my brother got one at the same time and I thought I could catch on quick since I ride a street bike . It 's been to a couple of tracks and the last trip was to the desert .
Question: Why is the narrator riding the bike less than usual ?
Options: 
- They do no tlike it .
 - None of the above choices .
 - They do n't have their brother to ride with .
 - They are not progressing quickly .


They are not progressing quickly .