The concept of 'Balance' in Attitude Change is explained below. Identify the correct options: 
(A) Fritz Heider described this change in the form of P-O-X triangle, which explains the relationship between the aspects.
(B) P is the person whose attitude is being studied. O is another person, X is the topic towards which attitude is studied. 
(C) Attitude changes if there is a state of imbalance between P-O, O-X, P-X attitude. 
(D) Imbalance is found when all three sides are positive. 
(E) Balance is found when all three sides of the P-O-X triangle are negative.