I waited and waited over an hour past my official appointment time until my labs came back . I was glad to see the doc but shamed that I had to tell her I fell off my bike . She shook her head and could not believe I was biking in such strong winds . She even took a careful walk instead of getting on her own bike yesterday .

Question: Why could n't the doc believe the writer was biking in such strong winds ?
Answer: Because that 's a dangerous thing to do .Because the writer 's labs came back .Because the writer was glad to see the doc .None of the above choices .