Read the following context and choose the best option to answer the question.
Context: I made my trek out to the little town east of me . I took the bike route , and yes , it was relatively flat as it went along with the canal . However , it seemed that every few minutes I had to get off and walk across a road way . On top of that I could only do twenty kilometers an hour as per signage .
Question: What may be the reason for getting off of the bike to cross the roadway .
Options: 
A. It 's much safer that way .
B. None of the above choices .
C. They want it to take longer .
D. They want to go slower .


A