The error is in the first sentence: A. Put your coat away in the closet;
There should be a period or an exclamation mark at the end of the sentence. I find no other mistakes.
Presentation aids are visual methods of clarifying ideas and illustrating the message. So, your answer would be A.
Hope this helps!
<span>We was to be umble to this person, and umble to that; and to pull off our caps here, and to make bows there; and always to know our place, and abase ourselves before our betters.
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Since its dealing with economics I would say C.
