A Nurse Is Reviewing a Patient's Chest X-Ray That Is

A nurse is reviewing a patient's chest x-ray that is described as a "PA view." This indicates that the x-ray was taken by directing the beam:

A) At an angle from the patient's mediastinum through the vertebrae
B) From front to back with the patient in a supine position on the x-ray table
C) From the patient's right side through the left side
D) Through the patient from the back to the front