A supine AP abdomen projection obtained with the patient in an LPO position demonstrates

1. the sacrum and coccyx aligned with the symphysis pubis.
2. a distance from the pedicles to the spinous processes that is narrower on the right side than on the left side.
3. the sacrum rotated toward the patient's right side.
4. the symphysis pubis rotated toward the patient's right side.
a. 1, 2, and 3 only
b. 2 and 3 only
c. 2 and 4 only
d. 1 and 4 only

B