A 5-Year-Old Boy Is Riding His Bike Along the Sidewalk

A 5-year-old boy is riding his bike along the sidewalk in front of his house when he is knocked onto the concrete head-first by his older brother. His parents take him to the emergency department after the boy complains of a headache and dizziness and begins vomiting. A computed tomographic scan reveals a large pool of blood between the dura and arachnoid mater. What type of bleed is this?

A) Subdural hemorrhage
B) Subarachnoid hemorrhage
C) Intraventricular hemorrhage
D) Epidural hemorrhage
E) Intracerebral hemorrhage