Per the guidelines set forth by the American Academy of Pediatrics (AAP) regarding infant nutrition, which of the following statements is accurate?

Infants should be given only human milk for the first 6 months of life.

If infants are weaned from breast milk before 12 months, they should receive cow's milk, not formula.

Infants fed on formula should be started on solid food sooner than breastfed infants.

After 6 months, mothers should shift from breast milk to cow's milk.