Karen was able to live in a coma for several years even when taken off the respirator. this is because parts of the body not under conscious control continue to function. these parts are regulated by the:

The right answer is autonomic nervous system.

The autonomic nervous system is the part of the nervous system that regulates certain automatic functions of the body such as smooth muscles, digestion, respiration, heart muscles or certain glands. Thus, it allows the maintenance of the internal homeostasis of the body. It is opposed to the somatic nervous system, a component of the peripheral nervous system associated with the voluntary control of the body's movements in its external environment.

i believe your answer would be c.. : )

a chain link fence because there so tiny even my albino donkey can't get out