Which of the following is NOT a characteristic of a good audio-visual aid?
AIt should be up-to-date.
BIt should be simple and cheap.
CIt should be complex and difficult to use.
DIt should be meaningful and purposeful.
AIt should be up-to-date.
BIt should be simple and cheap.
CIt should be complex and difficult to use.
DIt should be meaningful and purposeful.
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