Bella intends to post this paragraph on a site for teen scuba divers:

Divers who descend to great depths and then come to the surface too quickly may experience a painful condition caused by bubbles of nitrogen gas in the blood or tissue. If a diver rises slowly, the air pressure weighing upon the diver decreases gradually, and she breathes out nitrogen naturally. But if the diver rises too quickly, her blood can no longer hold its dissolved nitrogen. Bubbles of nitrogen gas form and travel through the body, accumulating in joints such as elbows and knees.

Which detail would provide a logical conclusion for the paragraph, making the writing coherent? A.
Divers may experience headaches, nausea, vomiting, and even seizures.
B.
Sometimes the pain is so great that the diver doubles over, a condition called “the bends.”
C.
Junior open-water divers ages 12 to 14 learn how to avoid the bends during their certification course.
D.
Nitrogen was discovered in 1772 by a Scottish physician.

Me asap it's an e2020 test and it's timedread 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 statesis 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 (7) it is about time that wereplaced our outdated and inefficient school calendars.what revision would most strengthen sentence 1?