Question

Why would a lack of neurotransmitters change the function of the brain?

A. Signals travel from neuron to neuron through neurotransmitters.
B. Neurons in the spinal cord are made of neurotransmitters.
C. Neurotransmitters connect the axon to the nucleus.
D. Neurotransmitters are the only chemicals that can enter the myelin
sheath.

Answer 1

I think it is a because of the neutrons

Answer 2

A.

Explanation: It's in the name. Neuro TRANSMITTERS. A transmitter transmits, or sends.