Answer:
D. is a temporary file created by an information system for a single task
(the options are given in the question and correctly provided in ask for detail section)
Explanation:
File oriented information system is the system that is used to store data temporarily. A file has been created for each new user that stores information about client for small piece of time in database. The files does not share information with each other as each independent user creates his own files. The data in this file is deleted after specific time interval.
A work file is a file that stores all the above mentioned information for single time. This is a temporary file.
