The average normal infant born in the United States weighs between 12 and 14 pounds at the age of three months. Therefore, if a three-month-old child weighs only 10 pounds, its weight gain has been below the United States average.

Which of the following indicates a flaw in the reasoning above?

• AWeight is only one measure of normal infant development.  
• BSome three-month-old children weigh as much as 17 pounds.  
• CIt is possible for a normal child to weigh 10 pounds at birth.  
• DThe phrase "below average" does not necessarily mean insufficient.  
• EAverage weight gain is not the same as average weight.