A mother brings her newborn in for an assessment and asks. "Is there something wrong with my baby? His head seems so big." Which statement is true regarding the relative proportions of the head and trunk of the newborn?

Head circumference should be greater than chest circumference at birth.

When the anterior fontanel closes at 2 months, the head will be more proportioned to the body.

At birth, the head is one fifth the total length.

The head size reaches 90% of its final size when the child is 3 years old.