Answer:
B. Feedback
Explanation:
Apart from the four basic functions of the Information system - input, process, output, store - the feedback function is also very important.
Feedbacks are ideas, suggestions, impressions, critics and even criticisms that are being got from users of a system. With feedback, information can be got to be used to make modifications in the input, processing actions, or output.
Feedback will also allow to rebuild and/or revisit an existing system and even allow businesses to make tangible, logical and positive business decisions.