Which Statement About Olfaction Is False

Which statement about olfaction is false?

A) Humans can discriminate many more odorants than there are olfactory receptors.
B) Each olfactory receptor neuron expresses only one type of receptor.
C) Different regions of a complex odorant molecule can bind to different receptor proteins.
D) Each glomerulus in the olfactory bulb contains axons from olfactory receptor neurons that express different receptor proteins.
E) Each olfactory receptor protein is found in a limited number of olfactory receptor neurons in the nasal epithelium.