What is the main idea of the section they don't go away when you exhale in “the brain’s response to inhalants”? a) inhalant vapors can be absorbed by myelin, which can ultimately lead to neuron damage. b)scientists do not understand why anyone would deliberately inhale vapors. c)inhaling vapors can lead to sudden sniffing death because inhaled fumes take the place of oxygen in the lungs and brain. d) inhalants can damage several parts of the brain.