What distinguishes a retake due to patient motion from a retake due to improper exposure factors?

• A. Motion retakes result from patient movement; exposure-factor retakes result from incorrect exposure settings.
• B. They are the same phenomenon.
• C. Motion retakes are caused by incorrect receptor size; exposure-factor retakes are caused by patient movement.
• D. Both retakes are caused by device malfunction only.

Answer: (D)