The average normal infant born in the United States weighs between 12 and 14 pounds at the age of three months. Ttherefore, 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? ['Some three-month-old children weigh as much as 17 pounds.', 'The phrase "below average" does not necessarily mean insufficient.', 'It is possible for a normal child to weigh 10 pounds at birth.', 'Average weight gain is not the same as average weight.']