In regard to distributed data processing ( DDP) which of the following statements is true?

		A. The centralized and DDP approaches are mutually exclusive; an organization must choose one approach or the other.
B.		Management should carefully asses the merits of DDP for their orgainzation before mvoving to a DDP environment.
		C. Disadvantages of DDP include cost, decreased user satisfaction, and reduced operational efficiency.
		D. Although hardware ( such as computers, database storage, and input/ output terminals) can be effectively distributed, the systems development and maintenance tasks must remain centralized for better control and efficiency.