Answer:
The rational, reality-oriented component of the personality, according to Freud, is known as the Id.
Explanation:
Freud set three states, or levels of the personality; ego, id, superego.
Id is the mediator between the two pervious terms; it is governed by the reality principle. It calms both states down in order to help the person to mend more into society. The id prevents the ego from taking over and only looking for short term gratification and it prevents toe superego from "suffocating" the individual with its restrictive nature.
To summarize, it is the rational, reality-oriented component which regulates both sides.