Follow-Up Experiments to Those in Adult Flies Were Performed in Drosophila

Follow-up experiments to those in adult flies were performed in Drosophila larvae, which have even smaller and simpler olfactory systems. Which of the following reported observations was not consistent with conclusions derived from studies of the adult olfactory system?

A) Each ORN expresses a single type of olfactory receptor.
B) Each ORN axon typically innervates a single glomerulus in the antennal lobe.
C) Each projection neuron's dendrites typically innervates a single glomerulus in the antennal lobe.
D) Each projection neuron typically connects one specific glomerulus in the antennal lobe with one stereotyped substructure in the mushroom body dendritic field.
E) Each intrinsic mushroom body neuron innervates several glomeruli in the mushroom body calyx, apparently randomly.