Problem: Stacey is a neonate who was born three weeks prior to her expected due date. Her parents are concerned about the size of her head, so they measure its length relative to the length of her body. They find that although Stacey is only 53 centimetres long, her head is 12 centimetres long. Is Stacey's head-to-body proportion unusual? Question options: 1) It is not unusual for her stage of development. 2) It is unusual and indicative of a problem with skeletal growth. 3) It is unusual and is indicative of fluid accumulation in the brain. 4) It is not unusual because Stacey was born prematurely.