I also realized I was training for my marathon and an Ironman I ' m not signed up for ( Arizona in November ) . All my friends are doing it , and I was vicariously training for them . ( Yes , if they told me they were going to jump off a cliff for a workout , I 'd probably follow ) .

Question: Why is the narrator running so much ?
Answer: None of the above choices .They plan to run a big race .They plan to help a friend train for a marathon .They plan to lose weight .