Trendelenburg's position is MOST accurately defined as a:
A. Recumbent position with the head lower than the legs.
B. Supine position with the legs elevated approximately 6"" to 12"".
C. Recumbent position with the head elevated at a 25° to 45° angle.
D. Supine position with the legs elevated 6"" to 12"" higher than the head."
