<span>d. All of these 110%</span>
Not always. If a child was surrounded by a good role model (adult), then yes, they would learn how to act against conflicts. If the child was surrounded by someone (an adult) who failed the conflict, then it could lead to the young child copying them and resulting in a bad situation.
A tract in the spinal cord would most likely be found in the white matter is the peripheral region that contains sensory and motor neurons. This region surrounds the central canal which is an extension of a ventricle. So the answer to your question is the peripheral region.
Vaccinations were first used in the year 1796.