Before I initiated sentence combining practice my students mainly saw the revision process as one of editing. They seemed to operate under a least effort strategy, meaning, they changed what was easiest to change. So they conducted "housekeeping" by fixing spelling, capitalization, formatting, and perhaps punctuation rather than engaging in what revising should have been, namely molding the sound of text to make a message clearer or providing an audience with what they need to know. But after sentence combining practice the number of revisions climbed. My students were changing words, adding phrases and clauses, and re-working entire sentences

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Generally speaking, we can state that the text presents how to make students review texts frequently, can improve the ability of these students to proofread and edit a text, making the text more coherent and fluid, with the modification of the entire structure and text composition. The text above reinforces that this is a result of repeated revisions, which shows that the more revisions students do, the more efficient their ability to edit a text efficiently.

the correct answer is a. how to make proposal that works.

indeed, the register is quite formal and the tone is especially objective as it avoids the use of the first and second person singular (i, you) and opts instead for the third person plural which is more impersonal and focuses on the data and the argument that is being developed by the author. the formality adds the impression of respectability to the work and the impersonality adds objectivity to it.