They are destroyed because t<span>he companies need to keep prices up</span>
Wilbur ate "pig slob" from Charlotte's Web. :)
The correct answer is ( D ). The connector “But” is used at the beginning of the sentence to introduce a COUNTER-ARGUMENT which is a viewpoint that is in opposition to a previous argument.
In general you want to be a bit more concise in forming a thesis statement. Usually you should shoot for between 1 and 2 sentences summarizing your argument in a concise way so that it is easily understandable to the reader. I would take what you have written and look for your main argument and try and put that in 1 to 2 sentences.