Answer:
B. electrical, chemical
Step-by-step explanation:
The messages are transmitted between the brain and different parts of the body as electrical impulses and a cell called neuron is the one that carries the them. The messages travel through a neuron as electrical impulses but between neurons they travel through a chemical called neurotransmitters from the axon to the synapse. Because of this, when a message is transmitted from your brain, it's turned into a electrical and chemical message which travels through an axon.