The part of the personality that guides us to know when we can and cannot express our impulses is the:

A) id.
B) ego.
C) superego.
D) libido.

Impulses

Sudden, involuntary urges to act or react that can drive behavior without conscious planning.

Ego

In psychoanalytic theory, the part of the psyche that mediates between the desires of the id, the realities of the external world, and the moral standards of the superego.

Libido

A term that describes one's overall sexual drive or desire for sexual activity.