Which one of the following is not an argument? (A) Devadutt does not eat in the day so he must be eating at night. (B) If Devadutt is growing fat and if he does not eat during the day, he will be eating at night. (C) Devadutt eats in the night so he does not eat during the day. (D) Since Devadutt does not eat in the day, he must be eating in the night.