The Nurse Instructs a Patient with a Nosebleed to Sit

The nurse instructs a patient with a nosebleed to sit up and lean slightly forward. For which reason does the nurse teach the patient to maintain this posture?

A) To prevent dizziness or syncope
B) To reduce bleeding from the anterior plexus
C) To help prevent symptoms of shock due to blood loss
D) To avoid unseen blood from being swallowed or aspirated