This is the worst movie of the ones we've seen lately.
Other option makes no sense when used in the sentence.
That dose look good. I would take out from "...or based on facts". Art is mainly based off of opinion. I would say that "Art and what it has done has changes the world greatly."
Hopes this helps.
Answer:
This author is credited with being the first Imagist poet:
Ezra Pound
A, because the meaning of a sentence can be made clear without the interjection ^-^
Hope I'm not too late! Good luck!