The only system that does not pass through the thalamus on its way to the cerebral cortex is the system.
a. tactile
b. gustatory
c. olfactory
d. visual

Olfactory (Option C)

Explanation: The thalamus is a cluster of nuclei shaped like a football. It is a bilateral structure with one in each hemisphere of the brain, and it acts as a relay station, controlling the flow of information to the neo cortex. The thalamus is composed of many different nuclei, and each consists of thalamic relay neurons. These are excitatory neurons which receive information from a variety of different brain areas and olfactory system is the only system not pass through the thalamus on its way to the cerebral cortex.

see below  

explanation:

all of the above