Read the following context and choose the best option to answer the question.
Context: seriously i walked 5 - 6 hours almost non - stop . few quick terraces - stop .. i even got to feel a muscle in my inside tigh that i never felt before even after running training.i went to place i never get to see anymore . happy places sad places .. in fact almost each place remember me sad and happy memories . montreal make me sad often .. my friend maurice is always like:'you and matt need to come live here!yay ! "
Question: Why is the narrator feeling some pain in their legs ?
Options: 
A. The narrator hates the issues with the roads .
B. The narrator is upping their training and running .
C. The narrator is experiencing issues with Montreal .
D. The narrator does not like the roads .


B