Which of the Following Is True of Data Processing and Storage

Which of the following is true of data processing and storage in a computerized information system?

A) In a computerized accounting information system,processing includes manually journalizing transactions and posting to the accounts.
B) In a computerized accounting information system,there will be a main centralized computer where data is stored,which cannot be accessed from any other computers.
C) In both computerized and manual systems,all data are contained in paper documents and are often stored in filing cabinets and off-site document warehouses.
D) In a computerized accounting information system,companies need to spend large amounts of cash to ensure that their data and information are secure.