Final answer:
Taste signals from the taste buds are processed in the gustatory cortex, and the olfactory signals for smell are processed in the olfactory cortex located in the temporal lobe. The correct answer is option 5) gustatory cortex; temporal lobe.
Step-by-step explanation:
Nerve signals from taste buds go to the gustatory cortex located between the parietal and temporal lobes, while those for olfactory cells go to the olfactory cortex located primarily in the temporal lobe. Therefore, the correct answer to the student's question is option 5) gustatory cortex; temporal lobe. Taste signals, originated from the taste cells, travel through the medulla and thalamus before reaching the gustatory cortex, whereas olfactory signals travel from the olfactory epithelium to the olfactory bulb, and directly to the olfactory cortex, without an intermediary stop at the thalamus.