Which of the following statements is true?

(A). Principle of unity of objective states that the organizational structure should facilitate the contribution of individuals to the achievement of the organization’s objectives. 

(B). The organizational structure should enable the enterprise to function in an efficient way as stated by the Principle of efficiency

(C). The Principle of flexibility states The organization should be adaptable to changing circumstances and should permit growth

(D). There should be a clearly defined ultimate authority in every organization as stated by the Principle of unity of direction