Answer:
Charles babbage ok my boy
Answer:Decisions are only as valid as the information on which they are based. Management information systems improve your decision-making, because they provide information that is accurate, timely, relevant and complete.
Explanation:
Decisions are only as valid as the information on which they are based. Management information systems improve your decision-making, because they provide information that is accurate, timely, relevant and complete.

Hi pupil here is your answer :::
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Your question :》 Which options are available when a user modifies a recurring appointment? check all that apply.
The answer is => A Open this occurenceand the option D Open the series are the option that shows from the dailog box that shows when attempting to modify the appointments .
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Hope this helps .........