A PA small intestine projection demonstrates a greater distance from the right pedicles to the spinous processes than from the left pedicles to the spinous processes. Such a projection

1. will also demonstrate a wider right pelvic ala.
2. was obtained with the patient's left side positioned farther from the imaging table than the right side.
3. was obtained with the patient in an RAO position.
4. should be obtained only for the first image in the series.
a. 1 only
b. 1 and 2 only
c. 2 and 3 only
d. 2, 3, and 4 only

A