Kenji is a casual runner who has been running for a long time. He decided it would be fun to train for an ultramarathon, so kenji has started running an additional hour everyday and increased his weekend long run. His friends and family have started complaining that they never see him, and when they do see him, he talks about nothing else and won't eat anything because of his training diet. What does this situation describe?
a. Kenji is a dedicated athlete, and dedicated athletes must make sacrifices
b. Kenji has neglected flexibility training
c. Kenji should track his progress
d. Kenji has not kept his running in perspective