Category C animals are not
subjected to procedures that involve pain or distress or would be required to
use pain-relieving drugs. Routine procedures such as injections and blood
sampling from veins that produce only mild, transient pain or discomfort are
reported in this category.
The best demostration that applies to Newton's Third Law of motion would be D) When you walk your foot pushes down on the ground while the ground pushes back on your foot.
