A nurse performs growth measurements at a 6-month well child visit. The infant weighed 8 pounds (3.6 kg) at birth and now weighs 16 pounds (7.3 kgs). Which of the following conclusions should the nurse make?

The infant's growth is inadequate because infants should gain 1 lb per month.

The infant's growth is delayed because birth weight should triple by 6 months.

The infant's weight gain indicates overfeeding and requires dietary modification

The infant's growth is appropriate because birth weight typically doubles by 6 months.