Cleo is writing an essay arguing that her school should open at 8: 30 a. m. instead of 7: 30 because it would benefit the student body. which claim is the most effective for her argument? kennedy high school should open at 8: 30 a. m. instead of 7: 30 because students would get an extra hour of sleep, improving their health and brain function. kennedy high school should open at 8: 30 a. m. instead of 7: 30 because students would get more sleep, making them healthier—although some would take advantage of the change and go to bed later. kennedy high school should open at 8: 30 a. m. instead of 7: 30 for seniors only because they have earned that special privilege and it would serve as motivation for younger grades. kennedy high school should open at 8: 30 a. m. instead of 7: 30 because many students arrive late as it is and this change would mean that more students get to class on time.