The passage conveyed a message that "writing more slowly is the most effective method for producing high-quality manuscripts."
We can also infer from the passage that those who write slowly and publish with little editing are the best-selling authors while those who write their draft more quickly, rewrite, and edit more are not best sellers authors. This further implies than the best selling authors produce more high-quality manuscripts than those who are not best sellers.
Let's examine each answer choice and find the one that has the truthful information to validate the assumption above.
Option A - Incorrect
This assumption is wrong and irrelevant to the passage argument. The passage never stated that the approach of writing quickly and rewriting many drafts of a manuscript is not useful in creating certain types of manuscripts.
Option B - Incorrect
No, this is not true. Best selling authors according to the passage write slowly and create few drafts of a manuscript. Writing quickly and creating many many manuscripts are the attributes associated with non-best selling authors.
Option C - Incorrect
This answer choice is incorrect. This claim portrayed here contradicts the teachers' belief which is "writing is best accomplished by creating a rough draft very quickly, and then editing and editing through many drafts."
Option D - Incorrect
Of course, this claim is true for finding the feature of best sellers but it doesn't align with the passage's conclusion that "writing more slowly is the most effective method for producing high-quality manuscripts."
Option E - Correct
This option choice fits perfectly with our pre-solution explanation regarding the passage conclusion at the beginning of this solution. The best selling authors produce more high-quality manuscripts than those who are not best sellers, because they write more slowly, and, writing more slowly is the most effective method for producing high-quality manuscripts.