The correct order would be; 5-2-6-1-3-4-7
B. You should not use the article as a reference. The lack of corroboration and outdated information outweigh the author's credentials.
As a student, completing your homework, doing well on tests, and trying your hardest in school will prepare you for future work. Completing work as a high school student will make it easier to complete work as a college student. Being able to put in effort in completing work, will make you a better student and will make it easier to do tasks in the future.
The climax is generally the part of a story where there is the most tension. This is the "turning-point," where the "edge-of-your-seat" moment is. The climax is generally full of suspense that has been brought up through the rising action, and is towards the end of the story.
