Which statement about chemoreceptors is NOT true?

A)Chemoreceptors are universally found in animals.
B)Chemoreceptors are found all over the body surface in humans.
C)Chemoreceptors are concentrated on the auricles of the head in planaria.
D)Chemoreceptors are found on antennae and mouthparts in insects and other arthropods.
E)Chemoreceptors are thought to be the most primitive sensory receptor to have developed in animals.