Which element in Freud's personality theory is composed of the conscience and the ego ideal?

Although I agree with pioneer... I'm assuming you're asking this question for a psychology class. There are three forces/parts of our psyche according to Freud's theory of personality/mind: the id, the ego, and the superego. The id is our instinctual drive, the ego is the self that we present to the world that mediates between the id and the superego, and the superego is our morality or ideal that society imposes on us. So the answer to your question to my knowledge of Freudian theory is the superego. The superego is our sense of morality, our conscience, and the ideal to which our ego strives.