The correct answer is: D. increased computer system control
Decentralized processing is a type of computing in which tasks are performed by multiple computers that are not connected to a central server. This can be contrasted with centralized processing, in which all tasks are performed by a single computer.
There are several advantages of decentralized processing over centralized processing. First, decentralized processing can reduce data communication costs. This is because data does not need to be transmitted to a central server, but can instead be processed locally. Second, decentralized processing can improve system reliability. This is because if one computer fails, the other computers can continue to operate. Third, decentralized processing can increase employee productivity. This is because employees can access data and applications from anywhere, without having to go to a central location.
However, there is one disadvantage of decentralized processing: it can make it more difficult to control the computer system. This is because there are multiple computers involved, and it can be difficult to keep track of what is happening on each computer.
Therefore, the correct answer is: D. increased computer system control