A 32-year-old G3P20L2 presents to the obstetrician's office for a routine OB visit at 30 weeks. She has had no complications during the pregnancy and has had regular prenatal care. Her gestational age is confirmed with a first-trimester sonogram. During the routine OB visit, the fundal height measures 35 cm. All of the following can explain the size-date discrepancy except
The 5-cm difference is within the error for fundal height measurements Leiomyomas Polyhydramnios Fetal macrosomia