How would the parasympathetic system help balance the sympathetic system?

If the sympathetic nervous system is in a state of constant of anticipation, being conscious manages to maintain the correct balance between the sympathetic and parasympathetic systems by growing the latter's operation. That provides a sense of relaxation and peace.

When arousing the sympathetic, it brings us on high alert, also named the fight-or-flight reaction. For our existence, the sympathetic nervous system is important in helping us to react appropriately when there is a danger. These two mechanisms work with coordination as the other becomes less active as one will respond more active. Yet it can get them out of control.

b. lithosphere, asthenosphere, mesosphere   is the answer most likely