The correct answer is B. Olfaction; thalamus
Explanation:
In biology, there are five main senses, these are the vision, the audition, the gustation, the olfaction, and the somatosensation or touch. A sensory stimulus is first perceived or collected by different organs, for example, the eyes are those that perceive vision signals and the ears perceive auditory stimuli. Then these stimuli are transferred to the peripheral nervous system and from this to the thalamus, which is a section of the brain that passes information to the cerebral cortex that is is in charge of processing and responding to it.
This occurs with all senses but is slightly different in the case of smell or olfaction, because the sensory signals or stimulus of this does not go to the thalamus but directly to the zone of the brain where it is processed. Thus, all sensory signals excerpt olfaction travel to the thalamus in the brain before the cerebral cortex.
