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 ?
Answer: None of the above choices .They are n't picking it up as quickly .They do no tlike it .They do n't have their brother to ride with .