When worn properly, a seatbelt should lie:
a) below the anterior superior iliac spines of the pelvis and against the hip joints.
b) across the abdominal wall at the level of the umbilicus and against the hip joints.
c) across the abdominal wall at the level of the diaphragm and below the hip joints.
d) above the anterior posterior iliac spines of the pelvis and below the hip joints.
