At this point he has to stay in the back hallway when we 're not home and at night because he sometimes ca n't wait to be let out before he pees . And he 's gotten really chunky . And I have n't been able to do any agility with him because of the way Prednisone affects muscle tissue .

Question: What is the speaker talking about ?
Answer: None of the above choices .Yes he has normal agilityYes he is in good shapeYes there is no Prednisone in his muscle