Read the paragraph from the preface of a nonfiction text.

This book is divided into six parts. Each has information about one of the six types of machines: the wheel and axle (it changed civilization!); the inclined plane (those ramps!); the wedge; the lever; the pulley; and the screw (yes, it’s a simple machine). Each part includes some simple examples along with some of the complex structures that I have designed using one or more of these simple machines.

Which pattern did the author use to organize the book?

definition
description
classification
advantages and disadvantages

Read the rough draft of a student's conclusion to anargumentative editorial.(1) year-round schooling would student achievement.(2) not so much information would have to be crammed intonine months. (3) furthermore, the elimination of long breaks,particularly summer break, would significantly reduce"learning loss" and the additional time wasted at thebeginning of each academic year to reteach previouslylearned material. (4) it is clear that year-round schooling students learn and retain more. (5) the united staleis not the only country to experiment with a year-roundschool schedule. (6) although many still claim that evidenceabout year-round school and its link to higher achievement isinconclusive, these people need to open their eyes and seethat students in these schools consistently score higher oncertain assessments than students who attend schools withtraditional nine-month calendars. (7) it is about time that wereplaced our outdated and inefficient school calendars.which best revises sentence 6 to create a more appropriate and respectful tone