question: Q:A 7-month-old infant, who was recently discharged from the hospital following an episode of enteritis and dehydration, has persistent watery diarrhea. His mother feeds him cow-milk formula and a variety of strained fruits and vegetables. On physical examination, his temperature is 37.4°C (99.3°F), his mucous membranes are dry, and his abdomen is slightly distended. No other abnormalities are seen. The problem is most likely related to which of the following?? 
  A:Fructose intolerance;B:Transient lactase deficiency;C:Magnesium deficiency;D:Regional enteritis