Macrosomia

Which of the following statements best describes the difference between the terms macrosomia and large for gestational age (LGA)?

1: Macrosomia is based solely on a fundal height measurement, whereas LGA is diagnosed with ultrasound.
2: Macrosomia applies to the actual birth weight of the infant, whereas LGA refers to the estimated size of the fetus.
3: Macrosomia has a specific weight cutoff, whereas LGA compares the size to a gestational age-specific distribution.
4: Macrosomia is only applicable when the mother is diabetic, whereas LGA is applicable to all large babies.