Businesses Typically Have Many Systems, Some Internally Developed, Some Purchased

Businesses typically have many systems, some internally developed, some purchased, and others acquired. Businesses want these systems to communicate with one another and provide users with easier access to data. There are three systems configurations that consolidate and coordinate data across multiple locations. These three include centralized systems, decentralized systems, and distributed systems. Each configuration has advantages and disadvantages. Which of the following is an advantage of decentralized systems?

A) Cost is lower, as there is only one central location to be maintained.
B) Reduction in processing bottlenecks as employees aren't competing for processing power.
C) Communication among the users is increased since they are all connected.
D) It promotes easier incremental growth or scalability of systems.