Answer : Option B) Glutamate.
Explanation :
Abnormal levels of glutamate are linked to migraines, seizures and schizophrenia.
As glutamate is a powerful excitatory neurotransmitter which is released by nerve cells present in the brain.
It is mostly responsible for sending signals between nerve cells, and under normal conditions it plays an important role in learning and memory. So this is the correct answer for the abnormal levels which causes neurological disorders.
