For an AP-PA Chest Projection (Right Lateral Position), the

For an AP-PA chest projection (right lateral position) , the
1) shoulders and the posterior ribs are positioned perpendicular to the cart.
2) humeri are positioned at a 90-degree angle with the IR.
3) midcoronal plane is aligned perpendicular to the IR.
4) patient is elevated on a radiolucent sponge or cardiac board.

A) 1 and 4 only
B) 2 and 3 only
C) 1, 2, and 4 only
D) 1, 2, 3, and 4