I liked her classes very much and have kept her notes for 10 years now . However , after I returned to Japan from California , I began to notice that Japanese people seemed to feel weird when they heard the fact I had a Vietnamese teacher . So , I stopped talking about her .

Question: Why may the narrator feel distant from her old friends ?
Answer: She feels the subject of discrimination against the Japanese .She feels the subject of racism due to her Asian affinities .She feels the subject of racism .None of the above choices .