Answer:
d. mitral cells
Step-by-step explanation:
The olfactory bulb receives sensations of smell.
Its source of sensory input (axons from olfactory receptor neurons of the olfactory epithelium), and one output (MITRAL cell axons).
It acts as a filter with functions such as distinguishing among odors, boosting sensitivity of odor detection, works with higher brain areas to promote the arousal to modify the detection or the discrimination of odors