Answer:
The best way to convince an art teacher that her students should enter their artwork in the state mixed-media art exhibit is by showing her the following:
D) a document emphasizing how much the students will benefit from participation in the exhibit.
Explanation:
Assuming she is a good teacher, she will certainly like the idea of her students benefiting from their participation in the event. It will be a solid reason for her to be convinced, since good teachers always aim for their students' learning, by any means necessary. Therefore, if she is convinced that her students will profit from the event, learning-wise, she will surely want them to take part in it.
Eg: an English as a Second Language (ESL) teacher would love it if his/her students could take part in some kind of exchange program, during which they would have the opportunity to speak lots of English to actual native speakers.
