B.
It comments on the action and provides background information.
Paragraph 1.
"Oh!," said Goldilocks, "the controlling idea is too vague. As a reader, I can't tell what your essay will really be about. When writing a controlling idea you want to be specific."
Paragraph 2.
"Oh my," exclaimed Goldilocks. "This controlling idea is too wordy. A controlling idea should be clear and concise. That was I will know what your essay is about."
Paragraph 3.
"Well, well," Goldilocks said. "this controlling idea doesn't address the prompt. When you look at what it is asking you to write, don't you see how it is asking you to explain the importance? This just says it is is important. But I do like how you thought of another word that means to not give up!"
Answer:
The answer for your question is none of the above in my opinion.
Without transitions the argument will sound bland and unorganized. All the hardwork put into the essay will be futile if there is no embellishment in the writing. Their must be ingenuity put into the argument, like transitions, to keep a reader comprehending your argument, as well as following each and every detail. Without transitions, your paper will not be able to do that.