Which of the following mechanisms is NOT used to propel lymph through lymphatic vessels?

Answer:
The correct answer is Pulmonary motion.
Explanation:
Pulmonary breathing motion is the movement of chest and diaphragm during. It does not assist the lymphatic system in any way.
Unlike blood, lymph is not pumped around by your body by the heart. Instead, it is pushed along when your lymph vessels are squeezed by your muscles, and by gravity if the vessel is above the heart. Lymphatic system is a one-way system: valves stop any lymph flowing backwards.