Final answer:
Rifle salutes are not rendered from the position 'Order arms,' as this position does not display the rifle in a ceremonial manner suitable for salutes.
Step-by-step explanation:
The position from which rifle salutes are not rendered is B. Order arms. Rifle salutes are typically rendered from ceremonial positions that involve having the rifle in a position to acknowledge or pay respect. Present arms, Trail arms, and Shoulder arms are all positions from which a rifle salute can be rendered, as they involve the rifle being held in a way that is symbolic and visible to observers. The Order arms position, however, has the rifle positioned against the body, which is not suitable for a salute.